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[OLD]Burning Rope Puzzle


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There are two lengths of rope.

Each one can burn in exactly one hour.

They are not necessarily of the same length or width as each other.

They also are not of uniform width (may be wider in middle than on the end), thus burning half of the rope is not necessarily 1/2 hour.


By burning the ropes, how do you measure exactly 45 minutes worth of time?

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Light one rope at both ends and only one end on the other rope. The one lit at both ends will burn for thirty mins. When it goes out, light the other end of the remaining rope, and that gives you your 15 minutes, making 45 mins style_emoticons/default/smile.gif
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