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HourRope - Measure the time

You have two sticks and matchbox. Each stick takes exactly an hour to burn from one end to the other. The sticks are not identical and do not burn at a constant rate. As a result, two equal lengths of the stick would not necessarily burn in the same amount of time. How would you measure exactly 45 minutes by burning these sticks?

SOLUTION : If we light the stick from both sides, it will take exactly half the original time, i.e. 30 minutes to burn completely. So, initially Light stick 1 on both sides and stick 2 on one side.

30 minutes Stick 1 will be burnt out. Light the other end of stick 2.

45 minutes Stick 2 will be burnt out.

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