Posted by: Slackdemic March 5, 2013
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It doesn't really matter what A wears.
Two Cases:
1.
A: Red
B: Black
C: Black
D: Red
D can tell he is wearing Red cap since he can see B and C wearing Black caps.
2.
A: Black
B: Black
C: Red
D:Red
D can't be the one to tell what he is wearing because he doesn't see A and B and C have different colors. However, since D is not speaking out, C knows he can't have the same cap as of B, (or it would be case 1), so he answers the opposite of what B is wearing-- in this case Red.
Good ol' days:
www.sajha.com/sajha/html/index.cfm
Two Cases:
1.
A: Red
B: Black
C: Black
D: Red
D can tell he is wearing Red cap since he can see B and C wearing Black caps.
2.
A: Black
B: Black
C: Red
D:Red
D can't be the one to tell what he is wearing because he doesn't see A and B and C have different colors. However, since D is not speaking out, C knows he can't have the same cap as of B, (or it would be case 1), so he answers the opposite of what B is wearing-- in this case Red.
Good ol' days:
www.sajha.com/sajha/html/index.cfm
Last edited: 05-Mar-13 10:54 AM