A,B,C are three intelligent persons.
A professor arranged them in a row with A in front ,B behind him and C behind them.
He had five caps-3 red and two green.
He then put a red or green cap on each so that C can see A's and B's cap,
but not his and B can see A's but not his or C's.A can't see no ones cap.
The professor asked them to say the hat in their head.
After a while A said correctly.
Question: What was the colour of hat he is having??
[Post your answers with explanation in the comments]
Image Credits: highsnobiety.com
1 comment:
Ans : Red
Let me denote the colors by G and R .
C did not shout after a while
=> AB cannot be GG
=> AB can be RG,GR or RR
Now , B also did not shout
=> AB cannot be GR
Based on these , A can clearly say out that he is wearing a red hat .
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