Pipes and Cisterns Practice Test 2 with solutions

Question : 17 of 40

Marks: +1, -0

A tank can be filled by pipes A and B in 12 minutes and 16 minutes respectively. When full the tank can be emptied by a third pipe in 8 minutes only. If the tank is empty and all the taps are tuned on simultaneously the tank will be full in:

48 min.
36 min.
24 min.
20 min.

Validate

Solution:

In 1 minute the part filled by all the three taps =

1/{12}+1/{16}-1/8

1/{48}

Hence, all the three pipes will fill the tank in 48 minutes.

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