Riddle #308

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By gandalf

Question: Two men find an old gold coin and want to have a coin toss with it to decide who gets it. The only problem is the coin is heavier on one side so it comes up heads more than tails. What is a fair way for the men to toss the coin and decide who gets the coin?

Answer: They just have to flip it twice. They call the first toss either heads or tails, then the next toss they automatically pick the opposite (ie if one man calls heads on the first flip, he automatically picks tails on the second and vice versa). If they both win one toss (a tie) out of the two, they just have to repeat until one of them wins both tosses.

Riddle Discussion

By: Bandanaman on 26/6/14

There are other permutations of two flips needed that can work too.
Reply

By: gandalf on 27/6/14

Yes, this is just one very simple solution.
Reply

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