CMAT 2022 Solved Question Paper

Question : 17 of 100

Marks: +1, -0

one pipe can fill a tank three times as fast as another pipe. If the two pipes together can fill the tank in 36 minutes, then the slower pipe will take how much time to fill the tank alone?

81 minutes
108 minutes
192 minutes
144 minutes

Validate

Solution:

Let slower pipe fill the tank at the rate

\x

units/ minute.
Faster pipe will fill tank at the rate of

3 {\x}

units/ minute
Number of units filled by both the pipes in a minute

=4 \x

Total time taken to fill tank

=36

minutes
capacity of tank

=36 \times 4 \x=144 \x

Time taken by slower pipe to fill the tank

=\underset{144 \x}/\x=144

minutes
Answer is option D.

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