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Two pipes can fill a tank in 15 minutes ...

Two pipes can fill a tank in 15 minutes and 20 minutes. respectively. An outlet pipe is draining the water at the rate of 28l/minute. All three pipes fill that tank in 12 minutes. Find the capacity of tank.

A

800 l

B

750 l

C

720 l

D

840 l

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ADVANCED MATHS BY ABHINAY MATHS ENGLISH-PIPE & CISTERN -QUESTIONS
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