This is yet another way to waste my limited time... Most of the writings here will be a hodge-podge of what I'm doing, thinking, or discussing with my friends and collegues. Flight-of-Ideas, no... that would imply connections... these are Random Thoughts!
Friday, November 12, 2004
Pyrotimer
PUZZLE You have two fuses of a heterogenous burn rate. Each fuse will take 60 minutes to burn. Light the fuses in such a way to measure 45 minutes.
(source: unknown)
Click on comments below for answer.
ANSWER Light the first fuse at both ends and the second fuse at one end. When the first fuse has completely burned (30 minutes later) light the remaining end of the second fuse. This will burn twice as fast (15 minutes).
1 comment:
ANSWER
Light the first fuse at both ends and the second fuse at one end. When the first fuse has completely burned (30 minutes later) light the remaining end of the second fuse. This will burn twice as fast (15 minutes).
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