Pipes and Cisterns Practice Test 1 with solutions

Question : 28 of 40

Marks: +1, -0

A cistern is connected with three pipes A, B and C. Pipe A can fill

1/4

th part of the cistern in 10 minutes, Pipe B can fill 40% of the cistern in 40 minutes and Pipe C can fill

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rd part of the cistern in 13 minutes. Working alone which will fill the cistern first?

A
B
C
Cannot be determined
Both A and C

Validate

Solution:

Time taken to fill by

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th part of the cistern by A = 10 minutes
Time taken by A to fill the cistern = 40 minutes
Time taken by B to fill 40% part of cistern = 40 minutes
Time taken by B fill cistern = 100 minutes
Time taken by C to fill

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rd part of cistern = 13 minutes
= 36 minutes
Hence, working alone, C will fill the cistern first.

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