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wu :: forums    riddles    easy (Moderators: Eigenray, Icarus, SMQ, Grimbal, towr, ThudnBlunder, william wu)    3 Hats « Previous topic | Next topic » Pages: 1  Reply Notify of replies Send Topic Print    Author  Topic: 3 Hats  (Read 577 times) Bob Guest 3 Hats   « on: Feb 29th, 2004, 3:15pm » Quote Modify Remove HELP!!!!!!! what is the answer to the three hat question IP Logged Cathos Full Member Carpe Canum     Gender: Posts: 246 Re: 3 Hats   « Reply #1 on: Feb 29th, 2004, 4:11pm » Quote Modify Try doing a search through the forum, it's out there somewhere. IP Logged Sum Arbor Drew Liao Guest Re: 3 Hats   « Reply #2 on: Mar 5th, 2004, 5:26pm » Quote Modify Remove C is wearing a black hat.   Since there are only 2 white hats in the box, if person A sees two white hats on B and C he knows his own hat is black. A answers "no" so either B or C is wearing black. B then sees C's hat and cannot tell what his own hat is either. This means that C's hat is black because if C was wearing white then B would know he was the black between the two of them. But, since both of them can be black, B cannot tell what he is because B, C, and even A could be wearing a black hat. IP Logged Pages: 1  Reply Notify of replies Send Topic Print Forum Jump: ----------------------------- riddles -----------------------------=> easy   - medium   - hard   - what am i   - what happened   - microsoft   - cs   - putnam exam (pure math)   - suggestions, help, and FAQ   - general problem-solving / chatting / whatever ----------------------------- general -----------------------------  - guestbook   - truth   - complex analysis   - wanted   - psychology   - chinese « Previous topic | Next topic »

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