Pipes and Cisterns Practice Test 1 with solutions

Question : 30 of 40

Marks: +1, -0

A pipe takes 12 hours to fill a tank but due to a leakage at the bottom of the tank, it takes 14 hours to fill the tank. When the tank is full, in what time will the leakage empty it?

42 hours
40 hours
$41 1/9$ hours
$39 1/3$ hours
None of these

Validate

Solution:

Work done by leakage in 1 hour =

1/{12}-1/{14}

{8-6}/{84}

2/{84}

1/{42}

So, time taken by leakage = 42 hours

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