Question

a pipe can fill a tank in 8 hours.however in case of outflow from a waste pipe in the bottom the tank is filled in 12 hours.if the tank is full how much time will the waste pipe take to empty it.

Answer 1

Answer:

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Answer 2

Answer:-

Given that the pipe can fill a tank without any leak in 8 hours

Work done without a leak in 1 hour = $\frac{1}{8}$

Given that the waste pipe can fill with leak in 12 hours

Work done with leak in 1 hour = $\frac{1}{12}$

Now,

Work done by leak in 1 hour = $\frac{1}{8} - \frac{1}{12}$

$= \frac{1}{96}$

So total time taken to empty it = 96 hours

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