Free Worldwide Shipping*
Spend $150 USD or more. Click for details.
August 6, 2009 @ 10:05 PM
Bill is Back

Post: 502

Join Date: Aug 2009

Location: Filadelfia

an acquaintance tells you she has two children and you ask her if at least one of them is a boy. She says yes. Assuming every birth has an equal chance of being male or female and you have no additional information about the children, what are the chances that both of her children are male?


25%
August 6, 2009 @ 10:07 PM
AntonyT

Post: 3738

Join Date: Feb 2008

word... 50% chance kid 1 is a boy x 50% chance kid 2 is a boy = 25%


don't listen to the answer rik tells you. he is wrong even before he starts
August 6, 2009 @ 10:10 PM
zzzboy

Post: 1894

Join Date: Apr 2008

nah dont think so. in the mean time answer this one:

your aunt's house is 120 miles from where you currently live. if you drive there at a rate of 60 mph and then drive back at a rate of 40 mph, what is your average speed for the whole round trip (excluding time spent there)?
August 6, 2009 @ 10:20 PM
Frodizzi

Post: 714

Join Date: Jan 2007

word... 50% chance kid 1 is a boy x 50% chance kid 2 is a boy = 25%


don't listen to the answer rik tells you. he is wrong even before he starts


you already know one is for sure a boy.
August 6, 2009 @ 10:28 PM
zzzboy

Post: 1894

Join Date: Apr 2008

answer to the advisor riddle:

call the advisors 1, 2 and 3. if 1 was wearing a black hat, and 2 thought he was wearing a black hat, then 3 would have immediately yelled out that his hat was white. but it didnt happen. so 2 should know that his hat is white.

the same thing can be said for all of the advisors. thus advisor 1 (or any advisor for that matter) knows hes wearing white.

it lies in the fact that there are only 2 black hats. if you see a black hat, and you were wearing a black hat, then the remaining guy should know that hes wearing white. but no one is wearing a black hat, so nothing happens.

fuck kinda hard to explain.
August 7, 2009 @ 12:12 AM
itZj0k3R

Post: 577

Join Date: Sep 2008

Location: Youngstown, OH

nah dont think so. in the mean time answer this one:

your aunt's house is 120 miles from where you currently live. if you drive there at a rate of 60 mph and then drive back at a rate of 40 mph, what is your average speed for the whole round trip (excluding time spent there)?


48mph?

also

that shit was on fucking yugioh. you ask any computer "what would the other computer tell me where heaven is?" and then you go to the opposite door. or you can ask which goes to the devil and go to that door.

2 scenarios for asking about heaven:
1) you ask that to the truth telling comp. he will then say that the lying comp would point to the door that leads to HELL because the lying comp would try to trick you. the door that he points out is hell, so you go to the other one.

2) you ask the lying comp. he will say that the truth telling one would pick the HELL door because this bitch comp is lying. go to the opposite one again.


What if you asked the truth computer which door goes to the devil and he points it out and you go to it?

Also, the "what would the other computer say" is super fcking confusing, but I think I may get it.
August 7, 2009 @ 12:15 AM
zzzboy

Post: 1894

Join Date: Apr 2008

48mph?

What if you asked the truth computer which door goes to the devil and he points it out and you go to it?

Also, the "what would the other computer say" is super fcking confusing, but I think I may get it.


what about it? thats not what i said i would ask lol. its not confusing really...since you dont know which computer lies and which one doesnt, you need a question that will address both computers at the same time.

and yea its 48.
August 7, 2009 @ 10:26 AM
AntonyT

Post: 3738

Join Date: Feb 2008

how the fuck did you get 48
August 7, 2009 @ 11:24 AM
splean07

Post: 648

Join Date: Nov 2006

Location: TORONTO

how the fuck did you get 48


i guessed 50 confused
August 7, 2009 @ 11:50 AM
AntonyT

Post: 3738

Join Date: Feb 2008

i guessed 50 confused


ya me too. ricki told me i was dumb...im so dissapointed in myself :/
August 7, 2009 @ 12:20 PM
resurrection

Post: 242

Join Date: Mar 2009

d = 240
t = 5

v = d / t
v = 240 / 5
v = 48
August 7, 2009 @ 12:24 PM
AntonyT

Post: 3738

Join Date: Feb 2008

oh damn. i was using 120. forgetting that the trip is there AND back
August 7, 2009 @ 01:14 PM
chill.

Post: 164

Join Date: Aug 2009

Location: Digable Planets

An acquaintance tells you she has two children and you ask her if at least one of them is a boy. She says yes. Assuming every birth has an equal chance of being male or female and you have no additional information about the children, what are the chances that both of her children are male?

B/G
B/B

Is it 50%?
August 7, 2009 @ 03:42 PM
zzzboy

Post: 1894

Join Date: Apr 2008

B/G
B/B

Is it 50%?


no. once again, like in the monty hall question, its helpful to exaggerate the problem and add more variables.

what if there were 100 kids and i was told at least one is a boy. would there still be a 50% chance of EVERY kid being a boy? hell no.

same thing applies here. the 2nd kid changes the simple B/B, B/G options. since there is another kid, there are three possibilities now:

Kid 1= Boy, Kid 2= Girl
Kid 1= Girl, Kid 2=Boy
Both Kids Boys

so three options, one good option, thus 1/3 chance.

another way of looking at it. suppose that we didnt know that one of the kids was a boy, then there would be a 25% chance of a Boy/Boy combo right? well lets look closer at our options:

Kid 1= Girl, Kid 2= Girl
Kid 1= Boy, Kid 2= Girl
Kid 1= Girl, Kid 2=Boy
Both Kids Boys

look, there are two B/G options. why would one of them be omitted if we are told one kid is a boy? the only thing that is lost is the G/G option.

one of the most important features of the puzzle is the "we dont know any more information about the kids" part. if we knew the younger kid was a boy, then yes, it would be a 50% chance of being B/B.
August 7, 2009 @ 06:18 PM
Quasi

Post: 71

Join Date: Apr 2009

A girl's mother dies in a mysterious car accident. She falls in love with someone at the funeral she's never met before. Love at first sight type shit. The next day, she is convicted for murdering her sister. Why did she kill her sister?
August 7, 2009 @ 06:30 PM
kilogram

Post: 1540

Join Date: Aug 2009

Location: Gaza

what do you call a girl who gives you head but never finishes you off?
August 7, 2009 @ 10:47 PM
Bill is Back

Post: 502

Join Date: Aug 2009

Location: Filadelfia

zzzboy
Your wrong dude. I just learned this shit in Bio this year. Use a Punnett Square and you get 25%.
August 7, 2009 @ 11:57 PM
zzzboy

Post: 1894

Join Date: Apr 2008

youre stupid. one of them has to be a boy. which means the GG square in the punnett square is gone. thats it. three options left.

dont talk to dis niga about punnett squares. are you in 9th grade or something? im not making up my own riddles...this is a famous riddle.
August 8, 2009 @ 03:38 AM
Frodizzi

Post: 714

Join Date: Jan 2007

^ i dnt knw. that one was kinda iffy. i dnt see how the order of children affects whether or not there is 2 boys or 1 boy and 1 girl.
August 8, 2009 @ 04:51 AM
zzzboy

Post: 1894

Join Date: Apr 2008

yea its diffiult, but heres an explanation from where i got it:

I'll start with a disclaimer that I continue to struggle with this question because their are some subtleties to its wording that cause disagreement...

It seems like the answer should be 1/2 but it is actually 1/3. There are 4 different possibilities: male+male, male+female, female+male, female+female. If she tells you that at least one of them is a male then that removes the female+female option only. Out of the 3 remaining choices, the male+male option is 1 of the 3 so the answer is 1/3.

One of the important parts of the teaser is the that "you have no additional information about the children". This is designed to remove all chances that knowing a particular child's sex implies any information about the other child. The question could be rephrased as "you know that the acquaintance does not have 2 girls, what are the chances that the acquaintance has 2 boys?" It is the same question.

Remember that it is not the number of options that is important but the probability of each option. If we look at a large number of families with 2 children, 1/4 should have 2 boys, 1/4 should have 2 girls, and 1/2 should have a boy and a girl, assuming every birth has an equal chance of being male or female. Knowing that at least 1 is a boy only removes 1/4 of the probabilities.

I've had a long argument with Anton regarding the Gambler's fallacy. This is not an example of Gambler's fallacy because are talking about the probability of events that have already completed. The teaser does not ask about the first child and then ask about the 2nd one. We are not predicting future events.

If you still don't believe me, why not try a little survey of people at work. Ask them if they have two kids (yes or no) -- if no then quit. Then ask them if at least one of them is male (yes or no) -- if no then quit. Then ask them if both kids are male (yes or no). Record the results. You'll may need as much as 100 couples before you start seeing the pattern.
Two Coin

If you would like to do a little simulation then do the following with two coins with heads representing girls and tails being boys.

1. Flip both coins so they randomly land heads or tails.
2. If neither coin is tails, then go back to #1, repeat.
3. If either one of the coins is tails, then record if they are both tails (boys) or just one.
4. Go to #1, repeat.

You should see, after a number of iterations, that 1/3 of the flips are both tails -- not 1/2.
August 8, 2009 @ 08:47 AM
Dorfmeister

Post: 578

Join Date: Dec 2007

SOLVE THIS ONE WITHOUT GOOGLE!!!!

1. In a street there are five houses, painted five different colours.
2. In each house lives a person of different nationality
3. These five homeowners each drink a different kind of beverage, smoke different brand of cigar and keep a different pet.

THE QUESTION: WHO OWNS THE FISH?

HINTS

1. The Brit lives in a red house.
2. The Swede keeps dogs as pets.
3. The Dane drinks tea.
4. The Green house is next to, and on the left of the White house.
5. The owner of the Green house drinks coffee.
6. The person who smokes Pall Mall rears birds.
7. The owner of the Yellow house smokes Dunhill.
8. The man living in the centre house drinks milk.
9. The Norwegian lives in the first house.
10. The man who smokes Blends lives next to the one who keeps cats.
11. The man who keeps horses lives next to the man who smokes Dunhill.
12. The man who smokes Blue Master drinks beer.
13. The German smokes Prince.
14. The Norwegian lives next to the blue house.
15. The man who smokes Blends has a neighbour who drinks water.
August 8, 2009 @ 09:59 AM
zacdog

Post: 100

Join Date: Feb 2009

^thats confusing as hell. 1?
August 8, 2009 @ 02:24 PM
Liquid

Post: 2240

Join Date: Dec 2007

Location: Brooklyn, NY

SOLVE THIS ONE WITHOUT GOOGLE!!!!

1. In a street there are five houses, painted five different colours.
2. In each house lives a person of different nationality
3. These five homeowners each drink a different kind of beverage, smoke different brand of cigar and keep a different pet.

THE QUESTION: WHO OWNS THE FISH?

HINTS

1. The Brit lives in a red house.
2. The Swede keeps dogs as pets.
3. The Dane drinks tea.
4. The Green house is next to, and on the left of the White house.
5. The owner of the Green house drinks coffee.
6. The person who smokes Pall Mall rears birds.
7. The owner of the Yellow house smokes Dunhill.
8. The man living in the centre house drinks milk.
9. The Norwegian lives in the first house.
10. The man who smokes Blends lives next to the one who keeps cats.
11. The man who keeps horses lives next to the man who smokes Dunhill.
12. The man who smokes Blue Master drinks beer.
13. The German smokes Prince.
14. The Norwegian lives next to the blue house.
15. The man who smokes Blends has a neighbour who drinks water.

lol i solved this one last year, not difficult, just long as hell and takes alot of writing...cool to get it right tho

Richard Cumming: word if your dick aint wet 24/7 you’re a simp. if theres no pussy around bess b’lee dat i got my dick in a glass of water

August 8, 2009 @ 04:29 PM
zzzboy

Post: 1894

Join Date: Apr 2008

another riddle:

you want a new bike, so you ask your dad. he says that you must play either your mother or father chess once every night for three nights, and if you win TWO times in a row, you can get the new bike. however, you father says that you must alternate, ie if you play your father one night you must play against your mother the next night. you also know that your father is a much stronger chess player than your mother.

given this, should you choose father-mother-father or mother-father-mother as your chess schedule?
August 8, 2009 @ 04:35 PM
zzzboy

Post: 1894

Join Date: Apr 2008

another one:

You are a prisoner sentenced to death. The Emperor offers you a chance to live by playing a simple game. He gives you 50 black marbles, 50 white marbles and 2 empty bowls. He then says, "Divide these 100 marbles into these 2 bowls. You can divide them any way you like as long as you use all the marbles. Then I will blindfold you and mix the bowls around. You then can choose one bowl and remove ONE marble. If the marble is WHITE you will live, but if the marble is BLACK... you will die."

How do you divide the marbles up so that you have the greatest probability of choosing a WHITE marble?
August 8, 2009 @ 05:44 PM
Frodizzi

Post: 714

Join Date: Jan 2007

father-mother-father

because the mom is easier to beat you get two chances to win two in a row. and if you go with mother-father-mother hes in the middle so he breaks any chance of winning two in a row.

my guees for the other is 50 white in one bowl and 50 black in the other.
August 8, 2009 @ 05:50 PM
Liquid

Post: 2240

Join Date: Dec 2007

Location: Brooklyn, NY

I'd take 1 white marble and and put it in one bowl and put the other 99 marbles in the other bowl. since your blind folded this will make ur chance of getting a whote marble 1/2 * 1 + 1/2* 49/100 whereas the chance of getting a black marble would only be 1/2*51/100 which comes out to about 75% vs 25%? Thats the only thing i could think of

Richard Cumming: word if your dick aint wet 24/7 you’re a simp. if theres no pussy around bess b’lee dat i got my dick in a glass of water

August 8, 2009 @ 06:09 PM
zzzboy

Post: 1894

Join Date: Apr 2008

oh shiet yall got em both. gj
August 12, 2009 @ 02:42 PM
BreezyHamilton

Post: 283

Join Date: Aug 2006

what do you call a girl who gives you head but never finishes you off?


lol, i don't call at allcool

Supreme Roses Football Top, A Love Supreme Tee, Trust Tee, Pam Grier Tee: http://hypebeast.com/forums/apparel/196365

May 12, 2011 @ 02:27 AM
&y

Post: 4014

Join Date: Mar 2009

bawmp

Please login first to reply.
Back To Top