A pump can fill a tank in 3 hrs- Due to a leakage- it took 3 1-2 hrs to fill it up completely- If the tank is full- how long will it take for the leakage to empty it-

The correct option is A 21 hrs Work done by the leakage in 1 hr = (1/3) (2/7) = 1/21 So the leakage will empty the tank in 21 hrs. ...

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A pump can fi...

Question

A pump can fill a tank in 3 hrs. Due to a leakage, it took 3 $\frac{1}{2}$ hrs to fill it up completely. If the tank is full, how long will it take for the leakage to empty it?

21 hrs

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Solution

The correct option is A
21 hrs

Work done by the leakage in 1 hr = ( $\frac{1}{3}$ ) - ( $\frac{2}{7}$ ) = $\frac{1}{21}$

So the leakage will empty the tank in 21 hrs.

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A pump can fill a tank in 3 hrs. Due to a leakage, it took 312 hrs to fill it up completely. If the tank is full, how long will it take for the leakage to empty it?

The correct option is A 21 hrs Work done by the leakage in 1 hr = (13) - (27) = 121 So the leakage will empty the tank in 21 hrs.

A pump can fill a tank in 3 hrs. Due to a leakage, it took 3 $\frac{1}{2}$ hrs to fill it up completely. If the tank is full, how long will it take for the leakage to empty it?

The correct option is A
21 hrs

Work done by the leakage in 1 hr = ( $\frac{1}{3}$ ) - ( $\frac{2}{7}$ ) = $\frac{1}{21}$

So the leakage will empty the tank in 21 hrs.