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Open By Majority (Posted on 2004-03-03) Difficulty: 3 of 5
A group of five people want to put a set of locks on a chest and distribute keys to the locks amongst themselves in such a way that all the locks on the chest could be opened only when at least three of them were present to open it.

How many locks would be needed, and how many keys?

See The Solution Submitted by Brian Smith    
Rating: 4.1429 (7 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
re: Explanations | Comment 12 of 45 |
(In reply to Explanations by Gamer)

Gamer is absolutely correct.

It should go without saying that a solution is not a full solution if it does not only demonstrate the answer, but also the means to the answer.

  Posted by SilverKnight on 2004-03-03 19:53:15

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