A pipe normally takes B hours to fill a tank. However, due to a crack at the bottom it takes 2 more hours. How long will the crack at the bottom of the tank take to empty a full tank when the fill pipe is kept shut?

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Asked: March 4, 20222022-03-04T13:50:51+05:30 2022-03-04T13:50:51+05:30

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A pipe normally takes B hours to fill a tank. However, due to a crack at the bottom it takes 2 more hours. How long will the crack at the bottom of the tank take to empty a full tank when the fill pipe is kept shut?

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Bhanu Chaudhary · Answer 1 · 2022-03-04T13:51:45+05:30

Correct Answer: 40 Hrs.

In 1 hour, the pipe will fill 1/8th of the tank.

On account of leak in 1 hour it is able to fill only 110th of the tank

1/A−1/B=1/10 or 1/8−1/B=1/10 or B=40Hr.

Therefore, the leak at the bottom will take 40 hrs to empty the tank