# A cistern is filled by a tap in 3 1/2 hours. Due to leak in the bottom of the cistern, it takes half an hour longer to fill the cistern. If the cistern is full how long will it take the leak to empty it? with Answer - Maths Mcqs | TestPrep

> Solved MCQ: A cistern is filled by a tap in 3 1/2 hours. Due to leak in the bottom of the cistern, it takes half an hour longer to fill the cistern. If the cistern is full how long will it take the leak to empty it? Correct Answer: D. 28 hours. Verified answer explanation for FPSC, PPSC, MDCAT, NTS, and CSS competitive exam preparation.

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# A cistern is filled by a tap in 3 1/2 hours. Due to leak in the bottom of the cistern, it takes half an hour longer to fill the cistern. If the cistern is full how long will it take the leak to empty it?

Direct Answer & Quick Reference

The correct option is **D. 28 hours**.

A. 7 hours

B. 8 hours

C. 14 hours

D. 28 hours **(Correct Answer)**

✨ Explain with AI

Verified Key: D. 28 hours
Solved by 4,806+ students

Verified against official examination board answer keys and standard curriculum textbooks.

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*Source: https://test-prep.blog/mcq/a-cistern-is-filled-by-a-tap-in-3-12-hours-due-to-leak-in-the-bottom-of-the-cist-6aca42d1-2485-4613-acae-df82712619f8*
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