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The Remaining Digits (Posted on 2005-08-04) Difficulty: 2 of 5
I have a bag containing the digits 0 through 9, and used six of them to stick two different three-digit perfect squares on the foreheads of Paul and George. Both Paul and George know this fact, but each one can see only the other's number.

I ask Paul, "How many of the digits remaining in my bag can you exactly tell me?"

Paul replies, "Three."

If I now ask the same question to George, what should he reply?

See The Solution Submitted by pcbouhid    
Rating: 4.3333 (6 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
re(4): George's answer | Comment 6 of 21 |
(In reply to re(3): George's answer by Charlie)

Indeed.  Well stated. :)


  Posted by Bob Smith on 2005-08-04 18:22:48
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