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Measure 45 minutes using two candles

Posted by Admin on
Que :  You are given a match-box and two candles of equal size, which can burn 1 hour each. You have to measure 45 minutes with these candles. (There is no scale or clock). How do you do?

A candle has two end setting the fire to both the end of candle simultaneously burn the candle as twice as fast,hence burning time of a candle on setting fire on both the end is 30 minutes .

First lit the candle 1 at both the end and candle 2 at one end .

After 30 minutes candle 1 is completely burnt and candle 2 has burnt for 30 minutes .

Now lit the candle 2 at the both the end it will burn completely in 15 minutes .
Total Time = 30 minutes + 15 minutes = 45 minutes .



Please comment if you like the above post or if you have another way of solving the questions. 



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