I usually don't post stuff like this but logic and probability puzzles fascinate me.
Abiola, over at Foreign Dispatches, poses an interesting puzzle. Please post your thoughts and reasoning behind them.
You are a contestant in a gameshow, and the host presents you with two envelopes, each of which contains a cheque. You may choose only one of the two, and you get to keep whatever sum the cheque in the envelope you pick is made out for. Your host informs you that one of the envelopes is made out for a sum exactly twice as large as the other one, but he refuses to tell you which is which.
Having no means of telling which envelope contains the cheque with larger sum, you simply pick one by guessing, and after the host asks you to open your envelope, you discover that the cheque in it is made out to the sum of $50,000. The host now asks you whether you'd like to change your mind and pick the other envelope instead; do you take him up on the offer, or stick with what you have?
1 comment:
mike, chris, olive and mark want to say that this was was BEYOND us and we are all LOST! ;-)
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