# A cistern has three pipes, A, B and C. The pipes A and B can fill it in 4 and 5 hours respectively and C can empty it in 2 hours. If the pipes are opened in order at 1, 2 and 3 A.M. When will the cistern be empty? with Answer - Maths Mcqs | TestPrep

> Solved MCQ: A cistern has three pipes, A, B and C. The pipes A and B can fill it in 4 and 5 hours respectively and C can empty it in 2 hours. If the pipes are opened in order at 1, 2 and 3 A.M. When will the cistern be empty? Correct Answer: D. 5 PM. Verified answer explanation for FPSC, PPSC, MDCAT, NTS, and CSS competitive exam preparation.

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# A cistern has three pipes, A, B and C. The pipes A and B can fill it in 4 and 5 hours respectively and C can empty it in 2 hours. If the pipes are opened in order at 1, 2 and 3 A.M. When will the cistern be empty?

Direct Answer & Quick Reference

The correct option is **D. 5 PM**.

A. 3 PM

B. 7 PM

C. 4 PM

D. 5 PM **(Correct Answer)**

✨ Explain with AI

Verified Key: D. 5 PM
Solved by 4,717+ students

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

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*Source: https://test-prep.blog/mcq/a-cistern-has-three-pipes-a-b-and-c-the-pipes-a-and-b-can-fill-it-in-4-and-5-hou-77f324ef-712e-4363-a98b-0a7735263630*
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