You have to boil a single egg for exactly nine minutes.
All you have are two hourglasses, able to measure (in sand) seven and four minutes, respectively.
How quickly, using only these two hourglasses, can you boil an egg?
(In reply to
re(2): Solution: by levik)
A number of replies have mentioned "my" solution, below. Although I did work it out independently, Charadenine posted it first. It's just that in the rush to post it, C9's solution is a little harder to follow.
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Posted by TomM
on 2002-07-09 08:34:51 |