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A) 16 h |

B) 20 h |

C) 32 h |

D) 40 h |

Correct Answer:

D) 40 h |

Description for Correct answer:

Let the leak takes x h to empty the tank.

Now. part filled by inlet in 1 h = \( \Large \frac{1}{8} \)

Part filled in 1 h when both tap and leak works together

= \( \Large \frac{1}{8+2} \) = \( \Large \frac{1}{10} \)

According to the question,

= \( \Large \frac{1}{x} \) = \( \Large \frac{1}{8} \)-\( \Large \frac{1}{10} \)=\( \Large \frac{5-4}{40} \) = \( \Large \frac{1}{40} \)

Therefore, x = 40 h

Let the leak takes x h to empty the tank.

Now. part filled by inlet in 1 h = \( \Large \frac{1}{8} \)

Part filled in 1 h when both tap and leak works together

= \( \Large \frac{1}{8+2} \) = \( \Large \frac{1}{10} \)

According to the question,

= \( \Large \frac{1}{x} \) = \( \Large \frac{1}{8} \)-\( \Large \frac{1}{10} \)=\( \Large \frac{5-4}{40} \) = \( \Large \frac{1}{40} \)

Therefore, x = 40 h

Part of solved Pipes and Cisterns questions and answers : >> Aptitude >> Pipes and Cisterns

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