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ITT some basic quant interview questions

sample questions for intro level business analyst type job (...
razzle-dazzle red hominid locus
  02/04/13
39
fragrant idiot death wish
  02/04/13
i dunno, 20? (blank stare)
Impressive bossy spot weed whacker
  02/04/13
serious q: has ANYONE not heard this question before?
curious ruddy rigor field
  02/04/13
i never had but it's incredibly easy for a smart person
fragrant idiot death wish
  02/04/13
tcr. It doubles every day. It is covered on day 40. what ...
drab overrated forum
  02/04/13
it's question one, little pumo breh. relax
razzle-dazzle red hominid locus
  02/04/13
i could see how someone dumb could be confused by it
fragrant idiot death wish
  02/04/13
fwiw, I read it in a book of brain teasers when I was like 5...
curious ruddy rigor field
  02/04/13
2^n-1= 20/2 or something basic
magical casino deer antler
  02/04/13
wtf are you even answering when the correct answer was the f...
Carnelian bbw
  02/04/13
...
talented clear karate
  02/04/13
...
magical casino deer antler
  02/05/13
could be 38 too if question doesn't specify that the 40th da...
Nighttime vibrant stag film
  02/08/13
#2. a bat and a ball cost $1.10. the bat costs $1 more than ...
razzle-dazzle red hominid locus
  02/04/13
105 5
fragrant idiot death wish
  02/04/13
jfc
multi-colored clown
  02/04/13
this seemed easy to me
Big brunch
  02/04/13
1 10
fantasy-prone toilet seat hospital
  02/04/13
It takes a man 1 hour to dig a hole. How long does it take h...
fighting bespoke half-breed mediation
  02/04/13
Is he gay or straight?
Mildly autistic crusty foreskin
  02/04/13
straight and, indeed, cisgendered
fighting bespoke half-breed mediation
  02/04/13
there's no such thing as "half a hole" it's either...
Carnelian bbw
  02/04/13
you're hired
fighting bespoke half-breed mediation
  02/04/13
what does the half hole look like?
comical cheese-eating goal in life dog poop
  02/04/13
#3 what is the sum of all numbers from 1-99? no calculat...
razzle-dazzle red hominid locus
  02/04/13
4900
fragrant idiot death wish
  02/04/13
4950
curious ruddy rigor field
  02/04/13
yep, i missed that one
fragrant idiot death wish
  02/04/13
12
fantasy-prone toilet seat hospital
  02/04/13
1 + 99 = 100. 2 + 98 = 100. and so on. so we end up w...
drab overrated forum
  02/04/13
oh, what a gauss
At-the-ready Territorial Cuck
  02/04/13
...
multi-colored clown
  02/04/13
lol
bipolar potus
  02/04/13
...
stirring toaster
  02/04/13
blank bumping this to sound smart because the name gauss is ...
Arousing Dull Love Of Her Life
  02/04/13
no, it's a reference to a story about gauss in kindergarten
stirring toaster
  02/04/13
...
Ruby hairless step-uncle's house
  02/05/13
4950. to find the sum of consecutive intgers, the formul...
tan shivering sneaky criminal
  02/04/13
oh this is more elegant than mine, I just figured that there...
Big brunch
  02/04/13
i believe it was before gauss was president.
big-titted lodge
  02/05/13
4950?
Big brunch
  02/04/13
594 I sample the sum of the first eleven numbers in the s...
stirring toaster
  02/04/13
lol ty
Big brunch
  02/04/13
You might laugh but many "genuisrs" think exactly ...
elite piazza
  02/04/13
And that is precisely why enormous quant funds go bust.
razzle new version
  02/05/13
*uses 100 to 1 leverage -- is ok with 95% confidence interva...
razzle new version
  02/05/13
...
curious ruddy rigor field
  02/05/13
scholarship
Khaki corner
  02/08/13
Imagine a 99 x 99 stack of unit area blocks. Then divide th...
Haunting athletic conference
  02/05/13
A, B, C and D represent digits from 0-9. ABC + CBA = ABCD. S...
At-the-ready Territorial Cuck
  02/04/13
no clue
fragrant idiot death wish
  02/04/13
actually, never mind, it should be ABC + CBA = BBCB... i mix...
At-the-ready Territorial Cuck
  02/04/13
EDIT, wait I almost have it
Big brunch
  02/04/13
no, this one has at least one solution edit: oh, i see...
At-the-ready Territorial Cuck
  02/04/13
A = 9, B = 1, C = 2?
Big brunch
  02/04/13
almost, but this misses a carry... 219+912 = 1131
At-the-ready Territorial Cuck
  02/04/13
oh good point. dood below has it.
Big brunch
  02/04/13
was just about to ask if it was impossible, jfc
curious ruddy rigor field
  02/04/13
You first notice that B must equal 1 since it's the only num...
Carnelian bbw
  02/04/13
2A = B^2?
razzle-dazzle red hominid locus
  02/04/13
ABC=813 CBA=318 BBCB=1131 pretty simple once you realiz...
Appetizing famous landscape painting
  02/04/13
correct on the key trick with the B and right overall
At-the-ready Territorial Cuck
  02/04/13
yeah I caught the B=1 thing but then I made a sloppy error a...
Big brunch
  02/04/13
You mean C+A must equal 11.
trip preventive strike jap
  02/04/13
8 1 3
amethyst marvelous chapel
  02/08/13
nasty question because of the way it uses "digits"...
geriatric partner
  02/04/13
#4 how would you obtain the sum of all results of a set o...
razzle-dazzle red hominid locus
  02/04/13
Not sure I understand, a sum of all the products?
Big brunch
  02/04/13
yeah, products
razzle-dazzle red hominid locus
  02/04/13
sum of the first row is 5*11 (using the gauss formula above)...
At-the-ready Territorial Cuck
  02/04/13
fark, i am dumb
hairraiser pea-brained base
  02/04/13
sum(sum(ij),i=1..10),j=1..10) sum(j*sum(i,i=1..10),j=1..10)...
Carnelian bbw
  02/04/13
...
bipolar potus
  02/04/13
Wait, these are questions for quant doods? I thought those g...
Big brunch
  02/04/13
OP said: >sample questions for intro level business an...
curious ruddy rigor field
  02/04/13
u fail reading comp breh. this will get you a 60-80k BI anal...
razzle-dazzle red hominid locus
  02/04/13
poast the hard ones, there are some smart doods ITT
curious ruddy rigor field
  02/04/13
really? i didn't think brain teasers were used for these job...
hairraiser pea-brained base
  02/04/13
how many punctuation marks constitutes a full pumo? show you...
fantasy-prone toilet seat hospital
  02/04/13
btw if you doods like these problems you should register an ...
At-the-ready Territorial Cuck
  02/04/13
You are offered to play a game of chance. A fair coin is tos...
razzle-dazzle red hominid locus
  02/04/13
$1.75
sooty slap-happy dilemma
  02/04/13
why?
confused twinkling uncleanness school
  02/04/13
$1
confused twinkling uncleanness school
  02/04/13
i think your ev is better but i cant do the math but every t...
bipolar potus
  02/04/13
$3.33 idk
bipolar potus
  02/04/13
i'm getting $2.53
Appetizing famous landscape painting
  02/04/13
ANSWER: http://en.wikipedia.org/wiki/St._Petersburg_parad...
razzle-dazzle red hominid locus
  02/04/13
Got this one during my b-school interview: You have a lam...
Arousing Dull Love Of Her Life
  02/04/13
wat? one timer set 5-8. wat
bipolar potus
  02/04/13
one timer set from 5-8am would only have the light come on f...
Arousing Dull Love Of Her Life
  02/04/13
oh, it only goes one 24 hour period? two timers, one from 5-...
bipolar potus
  02/04/13
the timers are in sequence. so two timers, one set for 5-8am...
Arousing Dull Love Of Her Life
  02/04/13
there is no way for the sequence to work at all then, assumi...
Big brunch
  02/04/13
i dont understand what the timers do man, sorry it's eith...
bipolar potus
  02/04/13
so it's a 24 hour timer? But wouldn't the timer directly plu...
Big brunch
  02/04/13
Well, you could set a timer to be on from, say, 1am to midni...
Arousing Dull Love Of Her Life
  02/04/13
but could you do this with two different times? at some poin...
Big brunch
  02/04/13
something has to be wrong about this hypo
Big brunch
  02/04/13
you god damn retards 2 timers 5am to 8pm 5pm to 8am
histrionic university
  02/04/13
I got this in like a second once I understood the question, ...
curious ruddy rigor field
  02/05/13
B-Schools (well top ones) don't normally have quant question...
purple nibblets
  02/05/13
this is a well known one One hundred ants are dropped on ...
razzle-dazzle red hominid locus
  02/04/13
One minute.
Big brunch
  02/04/13
YES I WIN WHERE'S MY 80K
bipolar potus
  02/04/13
this one seems really easy. Drop them all at opposite ends o...
Big brunch
  02/04/13
tbf the Q is "what is the maximum time possible" n...
Carnelian bbw
  02/04/13
Can we choose which direction each ant starts traveling? I s...
Big brunch
  02/04/13
Except that when the first ants hit each other, they're goin...
Fear-inspiring gas station associate
  02/05/13
the key to solving this problem is to understand that 2 ants...
razzle-dazzle red hominid locus
  02/05/13
idk 60s?
bipolar potus
  02/04/13
1 minute
electric submissive locale
  02/04/13
i am dumb
hairraiser pea-brained base
  02/04/13
A shopkeeper says she has two new baby beagles to show you, ...
razzle-dazzle red hominid locus
  02/04/13
1/3, although something has always struck me as wrong with t...
Big brunch
  02/04/13
cases where one is a male: MF, FM, MM in 1/3, both are...
At-the-ready Territorial Cuck
  02/04/13
This is the way it was explained to me, but I find this susp...
Big brunch
  02/04/13
This would be the case if you were to say "the first pu...
Fluffy laughsome crackhouse place of business
  02/04/13
but why is there a "first" and "second" ...
Big brunch
  02/04/13
There isn't the way it is worded, but there is the way you a...
Fluffy laughsome crackhouse place of business
  02/04/13
the dogs don't have positions, but they are distinct individ...
At-the-ready Territorial Cuck
  02/04/13
I understand that, but I disagree with the premise of assign...
Big brunch
  02/04/13
No you have 4 scenarios: Mgroom Mbride Mgroom Fbride Fgro...
Fluffy laughsome crackhouse place of business
  02/04/13
You have Puppy A and Puppy B. Four equally likely outcomes:...
Fluffy laughsome crackhouse place of business
  02/04/13
I get that, but I think the premise of assigning "A&quo...
Big brunch
  02/04/13
With the wording of the problem, you assume that the person ...
Fluffy laughsome crackhouse place of business
  02/04/13
the point is, each puppy has a 50/50 chance of being male or...
curious ruddy rigor field
  02/04/13
50%
electric submissive locale
  02/04/13
this is a classic, but a bit of a gay question
hairraiser pea-brained base
  02/04/13
Here's another way to think about it: The guy on the phon...
Big brunch
  02/04/13
Your logic makes no sense
Titillating walnut kitty marketing idea
  02/05/13
You are on a rowboat in the middle of a large, perfectly cir...
razzle-dazzle red hominid locus
  02/04/13
This is simple -- just row in a straight line to the furthes...
Big brunch
  02/04/13
no this won't work. you'd travel a distance of R and the mon...
electric submissive locale
  02/04/13
he only has to cover 3.14*r so he will catch you (because he...
razzle-dazzle red hominid locus
  02/04/13
oh yeah I fucked that up.
Big brunch
  02/04/13
the answer involves arc-shaped paths... i'm still trying to ...
At-the-ready Territorial Cuck
  02/04/13
ok, i think i've got it. my original idea was to paddle i...
At-the-ready Territorial Cuck
  02/04/13
this is correct if you're saying what i think you're saying ...
razzle-dazzle red hominid locus
  02/05/13
This is my favorite.
Adventurous awkward office
  02/05/13
Yragle the pirate has 100 white pearls and 100 black pearls....
razzle-dazzle red hominid locus
  02/04/13
edit: i'm dumb
electric submissive locale
  02/04/13
1 black pearl in one bag 99 black pearls and 100 white pear...
Fluffy laughsome crackhouse place of business
  02/04/13
going to go walk in front of a bus now, thanks
hairraiser pea-brained base
  02/04/13
what is the mass of the earth? (i got this one in an intervi...
Brindle self-absorbed legend double fault
  02/04/13
if you said "weight" I would say trick question, b...
Big brunch
  02/04/13
it is. i fumbled around for 25 minutes but got kind of close
Brindle self-absorbed legend double fault
  02/04/13
What's the calculation? I remember the # from an earth scien...
pale useless brakes site
  02/05/13
4/3*pi*r^3 for volume of sphere then i multiplied it by some...
Brindle self-absorbed legend double fault
  02/05/13
lol wtf earth isn't a sphere
pale useless brakes site
  02/05/13
the mass of love x dedication so 0
bipolar potus
  02/04/13
most of these are all pseudo-intellectual gay ass questions....
big-titted lodge
  02/05/13
You go on a game show where there are two boxes : H and T. y...
Titillating walnut kitty marketing idea
  02/05/13
put on my robe and wizard hat
razzle new version
  02/05/13
...
Titillating walnut kitty marketing idea
  02/08/13
switch. 50% chance of doubling your money is worth more than...
chocolate indirect expression
  02/05/13
Now that you've switched the host gives you the option to sw...
Titillating walnut kitty marketing idea
  02/05/13
lol, pwn
curious ruddy rigor field
  02/05/13
...
Titillating walnut kitty marketing idea
  02/05/13
http://en.wikipedia.org/wiki/Two_envelopes_problem
zombie-like mustard nowag
  02/05/13
*wins nobel prize* http://en.wikipedia.org/wiki/Long_Term...
razzle new version
  02/05/13
I got this one: "Think out loud and let us listen to...
chestnut aromatic senate sex offender
  02/05/13
the correct answer to all of these is "oh I'm sorry. I ...
boyish principal's office private investor
  02/05/13
...
Titillating walnut kitty marketing idea
  02/05/13
...
Nighttime vibrant stag film
  02/08/13
...
razzle-dazzle red hominid locus
  07/25/17


Poast new message in this thread



Reply Favorite

Date: February 4th, 2013 4:57 PM
Author: razzle-dazzle red hominid locus

sample questions for intro level business analyst type job (not quant but you have to have an intuitive grasp of numbers)

starting with the easiest:

there's a pond with lily pads on it. every day, the number of lily pads doubles. on the 40th day, the pond is completely covered. on which day is the pond half covered?

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568146)



Reply Favorite

Date: February 4th, 2013 4:58 PM
Author: fragrant idiot death wish

39

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568152)



Reply Favorite

Date: February 4th, 2013 4:58 PM
Author: Impressive bossy spot weed whacker

i dunno, 20? (blank stare)

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568160)



Reply Favorite

Date: February 4th, 2013 4:58 PM
Author: curious ruddy rigor field

serious q: has ANYONE not heard this question before?

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568161)



Reply Favorite

Date: February 4th, 2013 4:59 PM
Author: fragrant idiot death wish

i never had but it's incredibly easy for a smart person

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568166)



Reply Favorite

Date: February 4th, 2013 5:00 PM
Author: drab overrated forum

tcr. It doubles every day. It is covered on day 40. what day is it half covered. Gee. The day before. Duh.

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568181)



Reply Favorite

Date: February 4th, 2013 5:01 PM
Author: razzle-dazzle red hominid locus

it's question one, little pumo breh. relax

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568186)



Reply Favorite

Date: February 4th, 2013 5:02 PM
Author: fragrant idiot death wish

i could see how someone dumb could be confused by it

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568192)



Reply Favorite

Date: February 4th, 2013 5:03 PM
Author: curious ruddy rigor field

fwiw, I read it in a book of brain teasers when I was like 5 years old, and I was too dumb to get it at that age.

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568199)



Reply Favorite

Date: February 4th, 2013 5:49 PM
Author: magical casino deer antler

2^n-1= 20/2 or something basic

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568525)



Reply Favorite

Date: February 4th, 2013 5:56 PM
Author: Carnelian bbw

wtf are you even answering when the correct answer was the first response

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568556)



Reply Favorite

Date: February 4th, 2013 9:40 PM
Author: talented clear karate



(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22569828)



Reply Favorite

Date: February 5th, 2013 8:34 PM
Author: magical casino deer antler



(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22576477)



Reply Favorite

Date: February 8th, 2013 10:18 PM
Author: Nighttime vibrant stag film

could be 38 too if question doesn't specify that the 40th day results in "just-barely" coverage.

if some of those pads are pushing over the banks onto the shore because it's crowded, then it likely became 1/2 full some time during day 38.

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22599038)



Reply Favorite

Date: February 4th, 2013 4:58 PM
Author: razzle-dazzle red hominid locus

#2. a bat and a ball cost $1.10. the bat costs $1 more than the ball. how much do they each cost

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568163)



Reply Favorite

Date: February 4th, 2013 4:59 PM
Author: fragrant idiot death wish

105

5

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568170)



Reply Favorite

Date: February 4th, 2013 5:00 PM
Author: multi-colored clown

jfc

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568182)



Reply Favorite

Date: February 4th, 2013 5:11 PM
Author: Big brunch

this seemed easy to me

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568258)



Reply Favorite

Date: February 4th, 2013 5:02 PM
Author: fantasy-prone toilet seat hospital

1

10

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568198)



Reply Favorite

Date: February 4th, 2013 4:59 PM
Author: fighting bespoke half-breed mediation

It takes a man 1 hour to dig a hole. How long does it take him to dig half a hole?

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568174)



Reply Favorite

Date: February 4th, 2013 5:31 PM
Author: Mildly autistic crusty foreskin

Is he gay or straight?

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568409)



Reply Favorite

Date: February 4th, 2013 5:32 PM
Author: fighting bespoke half-breed mediation

straight and, indeed, cisgendered

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568414)



Reply Favorite

Date: February 4th, 2013 5:33 PM
Author: Carnelian bbw

there's no such thing as "half a hole" it's either a hole or its not

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568422)



Reply Favorite

Date: February 4th, 2013 11:11 PM
Author: fighting bespoke half-breed mediation

you're hired

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22570510)



Reply Favorite

Date: February 4th, 2013 6:50 PM
Author: comical cheese-eating goal in life dog poop

what does the half hole look like?

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568880)



Reply Favorite

Date: February 4th, 2013 5:00 PM
Author: razzle-dazzle red hominid locus

#3

what is the sum of all numbers from 1-99? no calculator/outside aids allowed. also describe how you would do the calculation

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568179)



Reply Favorite

Date: February 4th, 2013 5:00 PM
Author: fragrant idiot death wish

4900

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568184)



Reply Favorite

Date: February 4th, 2013 5:02 PM
Author: curious ruddy rigor field

4950

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568193)



Reply Favorite

Date: February 4th, 2013 5:03 PM
Author: fragrant idiot death wish

yep, i missed that one

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568202)



Reply Favorite

Date: February 4th, 2013 5:01 PM
Author: fantasy-prone toilet seat hospital

12

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568190)



Reply Favorite

Date: February 4th, 2013 5:03 PM
Author: drab overrated forum

1 + 99 = 100.

2 + 98 = 100.

and so on. so we end up with 49 pairs with a value of 100 each. 49 x 100 = 4900. We have 1 50 left over. 4950.

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568200)



Reply Favorite

Date: February 4th, 2013 5:04 PM
Author: At-the-ready Territorial Cuck

oh, what a gauss

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568208)



Reply Favorite

Date: February 4th, 2013 5:06 PM
Author: multi-colored clown



(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568224)



Reply Favorite

Date: February 4th, 2013 5:19 PM
Author: bipolar potus

lol

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568312)



Reply Favorite

Date: February 4th, 2013 5:24 PM
Author: stirring toaster



(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568345)



Reply Favorite

Date: February 4th, 2013 5:31 PM
Author: Arousing Dull Love Of Her Life

blank bumping this to sound smart because the name gauss is math-related.

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568404)



Reply Favorite

Date: February 4th, 2013 5:33 PM
Author: stirring toaster

no, it's a reference to a story about gauss in kindergarten

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568418)



Reply Favorite

Date: February 5th, 2013 7:01 PM
Author: Ruby hairless step-uncle's house



(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22575750)



Reply Favorite

Date: February 4th, 2013 5:07 PM
Author: tan shivering sneaky criminal

4950.

to find the sum of consecutive intgers, the formula is simple (i believe it was discovered by gauss). add the first and last integers in the sequence and then multiply that by half of the total numbers in the sequence. so here, it's 1+99=100. and then 100*49.5=4950

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568226)



Reply Favorite

Date: February 4th, 2013 5:13 PM
Author: Big brunch

oh this is more elegant than mine, I just figured that there are pairs of numbers that will each equal to 100, starting with 1+99, 2+98, etc., but there will only be 49 of them because 50 does not appear twice. So 49x100, and then add the 50.

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568273)



Reply Favorite

Date: February 5th, 2013 6:52 PM
Author: big-titted lodge

i believe it was before gauss was president.

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22575647)



Reply Favorite

Date: February 4th, 2013 5:12 PM
Author: Big brunch

4950?

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568265)



Reply Favorite

Date: February 4th, 2013 5:26 PM
Author: stirring toaster

594

I sample the sum of the first eleven numbers in the series: 1+2+3+4+5+6+7+8+9+10+11 = 66.

From this sample, I can reasonably estimate that each sample of eleven numbers in the overall series sums up to 66, and the total number of samples of eleven numbers is 99/11 = 9. therefore the total sum for 9 samples would be 66*9 = 594 +/- 7.4 at 95% confidence

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568365)



Reply Favorite

Date: February 4th, 2013 5:30 PM
Author: Big brunch

lol ty

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568401)



Reply Favorite

Date: February 4th, 2013 5:57 PM
Author: elite piazza

You might laugh but many "genuisrs" think exactly this way

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568558)



Reply Favorite

Date: February 5th, 2013 7:00 PM
Author: razzle new version

And that is precisely why enormous quant funds go bust.

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22575746)



Reply Favorite

Date: February 5th, 2013 7:02 PM
Author: razzle new version

*uses 100 to 1 leverage -- is ok with 95% confidence intervals*

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22575769)



Reply Favorite

Date: February 5th, 2013 7:05 PM
Author: curious ruddy rigor field



(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22575813)



Reply Favorite

Date: February 8th, 2013 10:24 PM
Author: Khaki corner

scholarship

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22599096)



Reply Favorite

Date: February 5th, 2013 7:48 PM
Author: Haunting athletic conference

Imagine a 99 x 99 stack of unit area blocks. Then divide the stack in half by a diagonal line going top left to bottom right.

The question is equivalent to asking what is the total area of the blocks either entirely to the left of the line or cut by the line.

(99 x 99)/2 gives you the area to the left of the line but then you have to account for an extra 99 half-blocks for those blocks cut by the line, so:

(99 x 99)/2 + (99 x 0.5) = 4950

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22576162)



Reply Favorite

Date: February 4th, 2013 5:05 PM
Author: At-the-ready Territorial Cuck

A, B, C and D represent digits from 0-9. ABC + CBA = ABCD. Solve, show work.

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568215)



Reply Favorite

Date: February 4th, 2013 5:11 PM
Author: fragrant idiot death wish

no clue

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568260)



Reply Favorite

Date: February 4th, 2013 5:12 PM
Author: At-the-ready Territorial Cuck

actually, never mind, it should be ABC + CBA = BBCB... i mixed up two problems when trying to remember them

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568263)



Reply Favorite

Date: February 4th, 2013 5:16 PM
Author: Big brunch

EDIT, wait I almost have it

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568291)



Reply Favorite

Date: February 4th, 2013 5:19 PM
Author: At-the-ready Territorial Cuck

no, this one has at least one solution

edit:

oh, i see why this is confusing everyone. ABC is a 3 digit number, not A*B*C

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568310)



Reply Favorite

Date: February 4th, 2013 5:20 PM
Author: Big brunch

A = 9, B = 1, C = 2?

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568317)



Reply Favorite

Date: February 4th, 2013 5:20 PM
Author: At-the-ready Territorial Cuck

almost, but this misses a carry... 219+912 = 1131

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568324)



Reply Favorite

Date: February 4th, 2013 5:21 PM
Author: Big brunch

oh good point. dood below has it.

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568331)



Reply Favorite

Date: February 4th, 2013 5:18 PM
Author: curious ruddy rigor field

was just about to ask if it was impossible, jfc

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568306)



Reply Favorite

Date: February 4th, 2013 5:48 PM
Author: Carnelian bbw

You first notice that B must equal 1 since it's the only number that can be carried to the thousands place when adding merely two numbers together. From there it flows fairly easily.

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568517)



Reply Favorite

Date: February 4th, 2013 5:18 PM
Author: razzle-dazzle red hominid locus

2A = B^2?

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568307)



Reply Favorite

Date: February 4th, 2013 5:19 PM
Author: Appetizing famous landscape painting

ABC=813

CBA=318

BBCB=1131

pretty simple once you realize that B has to be 1. if you are adding 2 3-digit numbers, the largest possible sum is 1998 (999+999). so B must be 1. C+A must equal 1, so the possible combinations are like 7, 4 or 8, 3, etc. i plugged in 8, 3 first and got the right answer.

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568311)



Reply Favorite

Date: February 4th, 2013 5:20 PM
Author: At-the-ready Territorial Cuck

correct on the key trick with the B and right overall

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568320)



Reply Favorite

Date: February 4th, 2013 5:27 PM
Author: Big brunch

yeah I caught the B=1 thing but then I made a sloppy error above

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568376)



Reply Favorite

Date: February 4th, 2013 8:40 PM
Author: trip preventive strike jap

You mean C+A must equal 11.

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22569372)



Reply Favorite

Date: February 8th, 2013 10:35 PM
Author: amethyst marvelous chapel

8 1 3

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22599206)



Reply Favorite

Date: February 4th, 2013 6:04 PM
Author: geriatric partner

nasty question because of the way it uses "digits" combined with the notation. if it were a free response test i'd be pwned hard thinking ABC was A times B times C.

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568594)



Reply Favorite

Date: February 4th, 2013 5:15 PM
Author: razzle-dazzle red hominid locus

#4

how would you obtain the sum of all results of a set of 1-10 multiplication tables?

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568286)



Reply Favorite

Date: February 4th, 2013 5:16 PM
Author: Big brunch

Not sure I understand, a sum of all the products?

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568293)



Reply Favorite

Date: February 4th, 2013 5:17 PM
Author: razzle-dazzle red hominid locus

yeah, products

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568299)



Reply Favorite

Date: February 4th, 2013 5:17 PM
Author: At-the-ready Territorial Cuck

sum of the first row is 5*11 (using the gauss formula above)

each row is n*(first row) where n is the value of the row digit

so 55 + 2*55 + ... + 10*55

iow, (1+2+...+10)*55 = 55^2

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568303)



Reply Favorite

Date: February 4th, 2013 6:10 PM
Author: hairraiser pea-brained base

fark, i am dumb

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568633)



Reply Favorite

Date: February 4th, 2013 5:50 PM
Author: Carnelian bbw

sum(sum(ij),i=1..10),j=1..10)

sum(j*sum(i,i=1..10),j=1..10)

sum(j*55,j=1..10)

55*sum(j,j=1..10)

55*55

3025

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568531)



Reply Favorite

Date: February 4th, 2013 5:20 PM
Author: bipolar potus



(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568318)



Reply Favorite

Date: February 4th, 2013 5:21 PM
Author: Big brunch

Wait, these are questions for quant doods? I thought those guys had to be able to do, like, actual math.

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568329)



Reply Favorite

Date: February 4th, 2013 5:22 PM
Author: curious ruddy rigor field

OP said:

>sample questions for intro level business analyst type job (not quant but you have to have an intuitive grasp of numbers)

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568333)



Reply Favorite

Date: February 4th, 2013 5:22 PM
Author: razzle-dazzle red hominid locus

u fail reading comp breh. this will get you a 60-80k BI analyst type job, 2-3 years out of college-ish. plus these are the easiest ones i could remember, they get progressively harder

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568336)



Reply Favorite

Date: February 4th, 2013 5:23 PM
Author: curious ruddy rigor field

poast the hard ones, there are some smart doods ITT

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568342)



Reply Favorite

Date: February 4th, 2013 5:31 PM
Author: hairraiser pea-brained base

really? i didn't think brain teasers were used for these jobs

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568405)



Reply Favorite

Date: February 4th, 2013 5:22 PM
Author: fantasy-prone toilet seat hospital

how many punctuation marks constitutes a full pumo? show your work.

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568332)



Reply Favorite

Date: February 4th, 2013 5:26 PM
Author: At-the-ready Territorial Cuck

btw if you doods like these problems you should register an alcumus account

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568358)



Reply Favorite

Date: February 4th, 2013 5:28 PM
Author: razzle-dazzle red hominid locus

You are offered to play a game of chance. A fair coin is tossed repeatedly until you get the first tails, at which point the game ends and you get the prize. The prize "pot" starts at $1 and doubles each time you get heads. So for instance, if you get heads the first toss, the pot becomes $2. If you get heads again the second toss, the pot becomes $4. If you get heads the third time, the pot becomes $8. If the fourth toss gives you the tail of the coin, you win and take home the $8 prize.

Before you play, you must pay a fee to enter this game. The question is, what's the maximum amount you're willing to pay in order to play this game?

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568387)



Reply Favorite

Date: February 4th, 2013 5:31 PM
Author: sooty slap-happy dilemma

$1.75

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568406)



Reply Favorite

Date: February 4th, 2013 5:32 PM
Author: confused twinkling uncleanness school

why?

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568416)



Reply Favorite

Date: February 4th, 2013 5:32 PM
Author: confused twinkling uncleanness school

$1

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568417)



Reply Favorite

Date: February 4th, 2013 5:34 PM
Author: bipolar potus

i think your ev is better but i cant do the math but every time you don't hit tails or whatever, you turn more than $1. so the number has to be > 1

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568427)



Reply Favorite

Date: February 4th, 2013 5:33 PM
Author: bipolar potus

$3.33 idk

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568419)



Reply Favorite

Date: February 4th, 2013 5:35 PM
Author: Appetizing famous landscape painting

i'm getting $2.53

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568435)



Reply Favorite

Date: February 4th, 2013 5:36 PM
Author: razzle-dazzle red hominid locus

ANSWER:

http://en.wikipedia.org/wiki/St._Petersburg_paradox

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568442)



Reply Favorite

Date: February 4th, 2013 5:30 PM
Author: Arousing Dull Love Of Her Life

Got this one during my b-school interview:

You have a lamp that you need to set on a timer. You want it to come on for two periods daily: 5-8am and 5-8pm. You have an unlimited number of light timers that each can allow power to the lamp for one period (think: those cheap Ikea timers that would allow the light to be on for one period per day). You can run these timers in sequence.

How many of these timers would the lamp require, and each set to what period, so that it will be on for these two time periods during the day?

edit: 24 hour timers. Lamp has one cord going to a single outlet. Multiple timers would run in sequence.



(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568397)



Reply Favorite

Date: February 4th, 2013 5:32 PM
Author: bipolar potus

wat? one timer set 5-8. wat



(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568413)



Reply Favorite

Date: February 4th, 2013 5:33 PM
Author: Arousing Dull Love Of Her Life

one timer set from 5-8am would only have the light come on for that one period. the light would stay off from 5-8pm. so, no.

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568423)



Reply Favorite

Date: February 4th, 2013 5:35 PM
Author: bipolar potus

oh, it only goes one 24 hour period? two timers, one from 5-8 another from 5-8?

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568437)



Reply Favorite

Date: February 4th, 2013 5:36 PM
Author: Arousing Dull Love Of Her Life

the timers are in sequence. so two timers, one set for 5-8am and the other from 5-8pm would not allow either to work.

Editing the OP.

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568445)



Reply Favorite

Date: February 4th, 2013 5:37 PM
Author: Big brunch

there is no way for the sequence to work at all then, assuming they are daisy-chained

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568456)



Reply Favorite

Date: February 4th, 2013 5:38 PM
Author: bipolar potus

i dont understand what the timers do man, sorry

it's either 2 or 3 with the stuff you've specified but i dont understand the rules w/r/t timers.

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568466)



Reply Favorite

Date: February 4th, 2013 5:35 PM
Author: Big brunch

so it's a 24 hour timer? But wouldn't the timer directly plugged into the outlet prevent power from getting to any subsequent timers in the chain for anything other than the programmed time?

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568438)



Reply Favorite

Date: February 4th, 2013 5:38 PM
Author: Arousing Dull Love Of Her Life

Well, you could set a timer to be on from, say, 1am to midnight. And then set the second timer in sequence so no power gets to the lamp except from, say, 1-3pm. Then despite two timers, the lamp would only be on from 1-3pm.

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568465)



Reply Favorite

Date: February 4th, 2013 5:41 PM
Author: Big brunch

but could you do this with two different times? at some point isn't one of the timers in the chain going to have to be set to a single short time period?

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568482)



Reply Favorite

Date: February 4th, 2013 5:50 PM
Author: Big brunch

something has to be wrong about this hypo

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568527)



Reply Favorite

Date: February 4th, 2013 6:23 PM
Author: histrionic university

you god damn retards

2 timers

5am to 8pm

5pm to 8am

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568725)



Reply Favorite

Date: February 5th, 2013 6:15 PM
Author: curious ruddy rigor field

I got this in like a second once I understood the question, but it was explained so poorly I had to read most of the subthread to figure out how the goddamn timers were supposed to work

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22575391)



Reply Favorite

Date: February 5th, 2013 6:19 PM
Author: purple nibblets

B-Schools (well top ones) don't normally have quant questions. Where was this?

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22575422)



Reply Favorite

Date: February 4th, 2013 5:35 PM
Author: razzle-dazzle red hominid locus

this is a well known one

One hundred ants are dropped on a meter stick. Each ant is traveling either to the left or the right with constant speed 1 meter per minute. When two ants meet, they bounce off each other and reverse direction. When an ant reaches an end of the stick, it falls off.

At some point all the ants will have fallen off. The time at which this happens will depend on the initial configuration of the ants.

Question: over ALL possible initial configurations, what is the longest amount of time that you would need to wait to guarantee that the stick has no more ants?

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568436)



Reply Favorite

Date: February 4th, 2013 5:36 PM
Author: Big brunch

One minute.

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568447)



Reply Favorite

Date: February 4th, 2013 5:39 PM
Author: bipolar potus

YES I WIN WHERE'S MY 80K

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568470)



Reply Favorite

Date: February 4th, 2013 5:41 PM
Author: Big brunch

this one seems really easy. Drop them all at opposite ends of the stick, 30s in, 30 s out. Done.

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568487)



Reply Favorite

Date: February 4th, 2013 5:56 PM
Author: Carnelian bbw

tbf the Q is "what is the maximum time possible" not "please find the length of time of one configuration you think is the maximum"

your solution is not rigorous

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568555)



Reply Favorite

Date: February 4th, 2013 6:03 PM
Author: Big brunch

Can we choose which direction each ant starts traveling? I suppose the longest version in that case would be a configuration with each ant 1/100 of a meter apart, but that seems like a giant pain in the ass to calculate.

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568581)



Reply Favorite

Date: February 5th, 2013 7:44 PM
Author: Fear-inspiring gas station associate

Except that when the first ants hit each other, they're going to turn around and then hit the ants behind them and turn back around.

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22576128)



Reply Favorite

Date: February 5th, 2013 7:46 PM
Author: razzle-dazzle red hominid locus

the key to solving this problem is to understand that 2 ants hitting each other and turning around is the same thing as 2 ants passing right through each other. so all the bouncing back and forth is just a red herring - the maximmum time it takes for all ants the clear the stick is the same as the maximum time it would take one ant to clear the stick - 1 minute

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22576141)



Reply Favorite

Date: February 4th, 2013 5:37 PM
Author: bipolar potus

idk 60s?

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568452)



Reply Favorite

Date: February 4th, 2013 5:39 PM
Author: electric submissive locale

1 minute

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568468)



Reply Favorite

Date: February 4th, 2013 5:36 PM
Author: hairraiser pea-brained base

i am dumb

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568444)



Reply Favorite

Date: February 4th, 2013 5:46 PM
Author: razzle-dazzle red hominid locus

A shopkeeper says she has two new baby beagles to show you, but she doesn't know whether they're male, female, or a pair.

You tell her that you want only a male, and she telephones the fellow who's giving them a bath.

"Is at least one a male?" she asks him. "Yes!" she informs you with a smile.

What is the probability that both beagles are male?

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568507)



Reply Favorite

Date: February 4th, 2013 5:48 PM
Author: Big brunch

1/3, although something has always struck me as wrong with the reasoning behind this

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568518)



Reply Favorite

Date: February 4th, 2013 5:53 PM
Author: At-the-ready Territorial Cuck

cases where one is a male:

MF, FM, MM

in 1/3, both are male

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568542)



Reply Favorite

Date: February 4th, 2013 5:58 PM
Author: Big brunch

This is the way it was explained to me, but I find this suspect. You are treating it as though there are "positions" for the dogs. But as I see it, there is only one dog and the other dog, so there should really only be two cases

MF

MM

where the second spot represents "the other dog."



(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568560)



Reply Favorite

Date: February 4th, 2013 6:02 PM
Author: Fluffy laughsome crackhouse place of business

This would be the case if you were to say "the first puppy is Male, what are the odds both are male?"

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568577)



Reply Favorite

Date: February 4th, 2013 6:17 PM
Author: Big brunch

but why is there a "first" and "second" puppy at all?

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568695)



Reply Favorite

Date: February 4th, 2013 6:28 PM
Author: Fluffy laughsome crackhouse place of business

There isn't the way it is worded, but there is the way you are interpreting the odds.

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568765)



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Date: February 4th, 2013 6:03 PM
Author: At-the-ready Territorial Cuck

the dogs don't have positions, but they are distinct individuals. "is at least one male" is fulfilled by either one being male or by both being male.

your reasoning is correct for the question "is dog A male" but not for the question "is at least one of dog A or dog B male"

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568582)



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Date: February 4th, 2013 6:24 PM
Author: Big brunch

I understand that, but I disagree with the premise of assigning them "A" and "B"

Let's phrase the question another way -- you are going to a wedding, and at least one of the people getting married is male. Assuming homos and heteros are equally distributed, what is the probability of the couple being gay? The answer is 50%. There's no left and right, A and B, 1 and 2 slot, etc., you just have a man, and he is either marrying a man or a woman. 50%.

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568735)



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Date: February 4th, 2013 6:34 PM
Author: Fluffy laughsome crackhouse place of business

No you have 4 scenarios:

Mgroom Mbride

Mgroom Fbride

Fgroom Fbride

Fgroom Mbride (lol)

You've eliminated the FF wedding, but you have a 1/3 shot at dat MM

edit: If you know in advance that it is 1 man marrying either a man or a woman, then you are right. But if you are going in blind and ask someone "is atleast 1 partner a man", then the odds play out as I showed above.

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568794)



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Date: February 4th, 2013 6:00 PM
Author: Fluffy laughsome crackhouse place of business

You have Puppy A and Puppy B. Four equally likely outcomes:

Aboy Bgirl

Aboy Bboy

Agirl Bgirl

Agirl Bboy

The phone call eliminates one outcome (Agirl, Bgirl)

Of the remaining possible outcomes, 1/3 is Boy-Boy

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568567)



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Date: February 4th, 2013 6:21 PM
Author: Big brunch

I get that, but I think the premise of assigning "A" and "B" slots is wrong.

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568717)



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Date: February 4th, 2013 6:27 PM
Author: Fluffy laughsome crackhouse place of business

With the wording of the problem, you assume that the person on the phone knows the sex of both puppies.

It's similar to the monty hall problem, where the fact that the host knows that he is showing you a losing door changes the odds vs if he were to show you a door at random and it happens to be a loser.

If he had only looked at one dog, and it happened to be a male, your numbers are correct.

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568762)



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Date: February 4th, 2013 7:35 PM
Author: curious ruddy rigor field

the point is, each puppy has a 50/50 chance of being male or female. if you want to keep track of each puppy separately (which you need to to do the math correctly), you need to label them somehow. whether it's "A" and "B" or "X" and "Y" or "dicks" and "dongs" doesn't matter, but you need to keep track of both puppies separately.

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22569111)



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Date: February 4th, 2013 5:51 PM
Author: electric submissive locale

50%

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568533)



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Date: February 4th, 2013 6:16 PM
Author: hairraiser pea-brained base

this is a classic, but a bit of a gay question

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568685)



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Date: February 4th, 2013 7:10 PM
Author: Big brunch

Here's another way to think about it:

The guy on the phone is effectively saying "I have two puppies here, one to my right and one to my left, and at least one of them (the one I'm looking at) is male"

There are four possibilities now:

1) The one he is looking at, R, is male, and L is also male

2) The one he is looking at, L, is male, and R is also male

3) The one he is looking at, R, is male, and L is female

4) The one he is looking at, L, is male, and R is female

The odds of two males becomes 50%. I don't see why this is any more or less a reasonable way to interpret the problem than the standard answer.

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568990)



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Date: February 5th, 2013 6:53 PM
Author: Titillating walnut kitty marketing idea

Your logic makes no sense

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22575654)



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Date: February 4th, 2013 5:50 PM
Author: razzle-dazzle red hominid locus

You are on a rowboat in the middle of a large, perfectly circular lake. On the perimeter of the lake is a monster who wants to eat you, but fortunately, he can't swim. He can run (along the perimeter) exactly 4x as fast as you can row, and he will always run towards the closest bit of shore to your boat. If two paths take him to this location equally quickly, he will arbitrarily choose one. If you can touch shore even for a second without the monster already being upon you, you can escape. The monster can reverse direction instantaneously and you can turn your boat instantaneously. Suggest a strategy that will allow you to escape, and prove that it works

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568529)



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Date: February 4th, 2013 5:55 PM
Author: Big brunch

This is simple -- just row in a straight line to the furthest point from the monster (the point directly opposite the monster) when you start rowing. You will get there faster than him.

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568551)



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Date: February 4th, 2013 5:59 PM
Author: electric submissive locale

no this won't work. you'd travel a distance of R and the monster would have to go pi*R but he travels 4 times as fast as you and 4>pi

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568564)



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Date: February 4th, 2013 6:01 PM
Author: razzle-dazzle red hominid locus

he only has to cover 3.14*r so he will catch you (because he only needs to cover half the perimeter if you start from teh opposite point of him)

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568571)



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Date: February 4th, 2013 6:04 PM
Author: Big brunch

oh yeah I fucked that up.

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568593)



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Date: February 4th, 2013 6:13 PM
Author: At-the-ready Territorial Cuck

the answer involves arc-shaped paths... i'm still trying to make the math work, but that's the only way you can stay ahead of the monster

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568655)



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Date: February 4th, 2013 6:40 PM
Author: At-the-ready Territorial Cuck

ok, i think i've got it.

my original idea was to paddle in a circle with a radius of r/2 (a circle inscribed so that r of the pond is its diameter). this had the virtue of forcing the monster to run towards a spot that you were moving away from. sadly, he only has to cover 3/2 pi r in the time you take to travel 1/2 pi r, so you still lose b/c of his speed advantage. (he only needs to be 3x as fast as you to arrive at the same moment).

this made me realize that the monster's speed advantage always allows him to catch you on an arced course whenever the distance you travel is that of a circle with arc >= 1/4r

so i think you win by 1) paddling in a circle with arc < r/4, which should allow you to get to a point where he is trailing the point your bow is pointing at, and then 2) go straight to the shore

do i get to be a janitor for quants with this answer

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568833)



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Date: February 5th, 2013 7:48 PM
Author: razzle-dazzle red hominid locus

this is correct if you're saying what i think you're saying which is that you can spiral out until you reach a circle of radius 1/4r (at which point you can no longer outdistance him). then take off like a bandit to the opposite side of the shore from where he is

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22576157)



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Date: February 5th, 2013 11:55 PM
Author: Adventurous awkward office

This is my favorite.

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22578107)



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Date: February 4th, 2013 5:54 PM
Author: razzle-dazzle red hominid locus

Yragle the pirate has 100 white pearls and 100 black pearls. The white pearls are worthless, the black pearls are priceless. He will let you distribute the pearls between two sacks, labeled "Heads" and "Tails." After you distribute the pearls, you flip a fair coin and choose a pearl at random from the corresponding sack. How should you distribute the pearls between the two sacks to maximize your odds of getting a black pearl?

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568545)



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Date: February 4th, 2013 5:57 PM
Author: electric submissive locale

edit: i'm dumb

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568559)



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Date: February 4th, 2013 6:09 PM
Author: Fluffy laughsome crackhouse place of business

1 black pearl in one bag

99 black pearls and 100 white pearls in the other

edit: I mean, assuming you have to place every pearl in a bag. Otherwise, just dump those TTT white pearls.

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568623)



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Date: February 4th, 2013 6:44 PM
Author: hairraiser pea-brained base

going to go walk in front of a bus now, thanks

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568855)



Reply Favorite

Date: February 4th, 2013 6:11 PM
Author: Brindle self-absorbed legend double fault

what is the mass of the earth? (i got this one in an interview once)

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568644)



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Date: February 4th, 2013 6:29 PM
Author: Big brunch

if you said "weight" I would say trick question, but mass I think is actually calculable

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568769)



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Date: February 4th, 2013 6:48 PM
Author: Brindle self-absorbed legend double fault

it is. i fumbled around for 25 minutes but got kind of close

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568870)



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Date: February 5th, 2013 8:37 PM
Author: pale useless brakes site

What's the calculation? I remember the # from an earth science class but no cloo how I'd answer if it wasn't drilled into my memory.

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22576500)



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Date: February 5th, 2013 10:00 PM
Author: Brindle self-absorbed legend double fault

4/3*pi*r^3 for volume of sphere then i multiplied it by some made up density number

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22577214)



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Date: February 5th, 2013 11:46 PM
Author: pale useless brakes site

lol wtf earth isn't a sphere

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22578004)



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Date: February 4th, 2013 6:45 PM
Author: bipolar potus

the mass of love x dedication so 0

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22568860)



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Date: February 5th, 2013 6:58 PM
Author: big-titted lodge

most of these are all pseudo-intellectual gay ass questions.

only the ones that required inventing a formula are worth looking at.

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22575719)



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Date: February 5th, 2013 7:01 PM
Author: Titillating walnut kitty marketing idea

You go on a game show where there are two boxes : H and T. you flip a coin and if its heads you are handed box H, tails you are handed box T. the host then tells you that one of the boxes contains twice as much money as the other and then gives you the option to switch, but does not tell you the total amount in the boxes, what do you do?

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22575749)



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Date: February 5th, 2013 7:08 PM
Author: razzle new version

put on my robe and wizard hat

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22575837)



Reply Favorite

Date: February 8th, 2013 10:09 PM
Author: Titillating walnut kitty marketing idea



(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22598969)



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Date: February 5th, 2013 7:20 PM
Author: chocolate indirect expression

switch. 50% chance of doubling your money is worth more than a 50% chance of halving it. mathematically, .5(2x+.5x) = .5(2.5*x)>x.

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22575936)



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Date: February 5th, 2013 7:22 PM
Author: Titillating walnut kitty marketing idea

Now that you've switched the host gives you the option to switch back to the original box, what do you do?

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22575956)



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Date: February 5th, 2013 10:12 PM
Author: curious ruddy rigor field

lol, pwn

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22577290)



Reply Favorite

Date: February 5th, 2013 8:34 PM
Author: Titillating walnut kitty marketing idea



(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22576478)



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Date: February 5th, 2013 9:58 PM
Author: zombie-like mustard nowag

http://en.wikipedia.org/wiki/Two_envelopes_problem

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22577196)



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Date: February 5th, 2013 7:07 PM
Author: razzle new version

*wins nobel prize*

http://en.wikipedia.org/wiki/Long_Term_Capital_Management

*destroys fund, almost collapses global economy*

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22575831)



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Date: February 5th, 2013 7:33 PM
Author: chestnut aromatic senate sex offender

I got this one:

"Think out loud and let us listen to how you estimate the cans of paint it will take to paint the Verrazano Narrows Bridge."

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22576048)



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Date: February 5th, 2013 7:43 PM
Author: boyish principal's office private investor

the correct answer to all of these is "oh I'm sorry. I didn't realize it was 1997."

(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22576115)



Reply Favorite

Date: February 5th, 2013 8:18 PM
Author: Titillating walnut kitty marketing idea



(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22576387)



Reply Favorite

Date: February 8th, 2013 10:15 PM
Author: Nighttime vibrant stag film



(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#22599015)



Reply Favorite

Date: July 25th, 2017 11:59 AM
Author: razzle-dazzle red hominid locus



(http://www.autoadmit.com/thread.php?thread_id=2175711&forum_id=2#33850985)