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Posted 20 April 2008 - 08:55 PM
Posted 30 April 2008 - 12:42 PM
Couldn't the last person in the queue also be able to guess this correctly? Assuming the 3 men knew the amount of white and red bands (3 and 2) the last man could see that the first two men both have red bands. The 3rd man knowing there are only 2 red bands could then realize that he must have a white band and state that thus setting them free.
Yes, you are correct. There are two possible outcomes. Either the third man sees two red headbands and says his is white, or the third and second are silent and the first guesses his is white.
Posted 12 May 2008 - 10:42 PM
Posted 15 May 2008 - 03:27 AM
Posted 14 June 2008 - 12:24 PM
No way! This answer is BOGUS! The question only states that one of them spoke up, it doesn't say the first one spoke up. It solves the puzzle equaly well to have per1 and per2 wearing white, and per3 saying he has red because he can see the two whites. And the idea that someone might pause to double check in his head how many of each color headbands there were before speaking up when his life is on the line I think is perfectly reasonable.
..but if you had paused to double check how many of each colour headbands there were, you would have found that there were a possible three whites, so if per3 saw 2 whites in front of him he would not know if he had a red or a white. That's why he didn't speak.
Posted 15 June 2008 - 02:48 AM
white reflect heat and be cooler
Posted 15 June 2008 - 10:45 AM
If the third sees only 2 white then he is unsure what color his headband is... but the first still knows 2 red were not seen by the third
like senti_2k2 said....what if third sees 2 white headbands?
Going by the second prisinors silence he still safely assumes he has a white himself.
Posted 19 June 2008 - 03:02 PM
www 1st person
3rd should say immediately
2nd should wait and say for a min
1st should wait for a while and should say
Posted 27 June 2008 - 03:23 PM
. the silence will even be lopnger so after a day or so the 1st person will realise that neither of the man can determine the colour of their headband so he know his is white because if it were red the second person would have been able to say white and the third could hhave been quite or the second person was quiet and the third person responded.
the only fact they have to know is that there are 3 white bands and 2 reds
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