wuddufuxlolbbq v3

jhv · 03-17-2009, 04:49 AM

The graphic above depicts four men, buried up to their necks, about to get shot by a firing squad (ah, the poor souls).

‘A’ is facing the wall from the left, the other 3 (B, C, D) are facing the wall from the right. They know they are 3 on one side and 1 on the other. They are also lined up in a straight line and cannot see around or through the wall.

They had their hats put on at night and so they do not know what color of hat they are wearing; but they know there are four men altogether and that two of them are wearing a white hat and two a black one.

In order to for all of them to avoid being shot, one of them must call out to the executioner the color of THEIR hat. If they get it wrong, they will all be shot. They are not allowed to talk to each other, nor is there any other form of communiciation.

They have 5 minutes to figure it out.

After two minutes of silence:

Which one them calls out their hat color?

Why is he certain of the color of his hat?

This is not a trick question. They cannot move. They are buried in a straight line. A & B can only see their respective views of the wall, C can see B, and D can see B & C.

ChineseGuy · 03-17-2009, 05:10 AM

I had to look up the answer for this one...

I hate myself for not spending more time to figure this out...

jhv · 03-17-2009, 05:16 AM

Quote:

Originally Posted by ChineseGuy

I had to look up the answer for this one...

I hate myself for not spending more time to figure this out...

patience is a virtue

GordonShumway · 03-17-2009, 07:51 AM

C calls out Black. He knows that if D saw two hats the same color, he would have known his color hat. Therefore, since C saw B had a white hat, his had to be Black.

Edit: And No, I didn't look this up.

GordonShumway · 03-17-2009, 10:30 AM

Quote:

Originally Posted by got psi

That'll work. But how does C know that D can see C & B?

It says so.

Kensta335 · 03-17-2009, 10:32 AM

Quote:

Originally Posted by GordonShumway

C calls out Black. He knows that if D saw two hats the same color, he would have known his color hat. Therefore, since C saw B had a white hat, his had to be Black.

Edit: And No, I didn't look this up.

There's your answer.

Tondtar · 03-17-2009, 10:35 AM

Let me get back to you after I have my fourth cup of coffee today

Scorpion · 03-17-2009, 10:42 AM

Oh I was ganna go with D lol.

GordonShumway · 03-17-2009, 01:11 PM

Quote:

Originally Posted by damadama

How does C know that D isn't on par intelligence wise with GWB?

That wasn't part of the question.

txusa03 · 03-17-2009, 11:43 PM

Quote:

Originally Posted by damadama

How does C know that D isn't on par intelligence wise with GWB?

good one

03-17-2009, 04:49 AM	#1
jhv Lieutenant General 1699 Rep 17,304 Posts Drives: G80 M3 Join Date: Apr 2007 Location: Los Angeles iTrader: (1)	wuddufuxlolbbq v3 The graphic above depicts four men, buried up to their necks, about to get shot by a firing squad (ah, the poor souls). ‘A’ is facing the wall from the left, the other 3 (B, C, D) are facing the wall from the right. They know they are 3 on one side and 1 on the other. They are also lined up in a straight line and cannot see around or through the wall. They had their hats put on at night and so they do not know what color of hat they are wearing; but they know there are four men altogether and that two of them are wearing a white hat and two a black one. In order to for all of them to avoid being shot, one of them must call out to the executioner the color of THEIR hat. If they get it wrong, they will all be shot. They are not allowed to talk to each other, nor is there any other form of communiciation. They have 5 minutes to figure it out. After two minutes of silence: Which one them calls out their hat color? Why is he certain of the color of his hat? This is not a trick question. They cannot move. They are buried in a straight line. A & B can only see their respective views of the wall, C can see B, and D can see B & C. Last edited by jhv; 03-17-2009 at 06:49 AM..
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03-17-2009, 05:10 AM	#2
ChineseGuy QuickShifter 137 Rep 1,500 Posts Drives: Black E90 Join Date: Nov 2005 Location: North Pole iTrader: (2)	I had to look up the answer for this one... I hate myself for not spending more time to figure this out...
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03-17-2009, 07:51 AM	#4
GordonShumway Alien 25 Rep 21 Posts Drives: 2007 330i Join Date: Jan 2009 Location: Somewhere close iTrader: (0)	C calls out Black. He knows that if D saw two hats the same color, he would have known his color hat. Therefore, since C saw B had a white hat, his had to be Black. Edit: And No, I didn't look this up. __________________ Last edited by GordonShumway; 03-17-2009 at 10:07 AM..
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03-17-2009, 10:35 AM	#7
Tondtar 12 yr old Juvie 1076 Rep 881 Posts Drives: His Mom Crazy Join Date: Apr 2008 Location: El Lay iTrader: (2) Garage List 2008 (RIP in 2011) ... [0.00]	Let me get back to you after I have my fourth cup of coffee today
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03-17-2009, 10:42 AM	#8
Scorpion Major 162 Rep 1,210 Posts Drives: Nothing Join Date: Aug 2008 Location: Nowhere iTrader: (0)	Oh I was ganna go with D lol.
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