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The Letter (Posted on 2002-12-08) Difficulty: 3 of 5
You receive a strange letter stating the following:

You are one of 20 logicians worldwide to receive this letter. You don't know each other, but you all think alike. An address is given, and you are told that if a letter is received from one and only one of you, all 20 will equally split a large sum of money. If no letters are received, or more than one, no prize.

What would you to for a chance of winning the prize? What could you do in order to maximise the probability of winning?

See The Solution Submitted by pleasance    
Rating: 3.0000 (15 votes)

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Solution | Comment 9 of 27 |
All the logicians think that they will post the letter to the "place". Then after posting they "think" they will go to the "place". They "think" they will take letters from the "place"'s mailbox except for one.(Of course this is before the officials take it out of the mailbox). Then only one letter will be left in the mailbox! And they win.
  Posted by Dulanjana on 2002-12-09 00:47:20
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