Q26 of 28 Page 11

A pipe can fill a cistern in 10 hours. Due to a leak in the bottom it is filled in 12 hours. When the cistern is full, in how much time will it be emptied by the leak?

Given,


A pipe can fill a cistern in = 10 hours


Due to leakage it get filled in = 12 hours


∵ Without leakage work done by pipe in 1 hour =


∵ With leakage work done by pipe in 1 hour =


∴ Work done by leakage in 1 hour =


Hence, the cistern will be emptied by leakage in =


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