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The time in minutes that the three pipes together will together will take to fill the cistern, is

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To fill a cistern pipes A, B and C take 20 minutes, 15 minut

Two pipes A and B can separately fill a cistern in 10 and 15

Two pipes A and B can separately fill a cistern in 10 and 15

There are 12 pipes attached to atank.

Some of them are fill

Some of them are fill

Two pipes A and B can separately fill a cistern in 60 min an

Two pipes A and B together can fill a cistern in 4hours.

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Ha

Two pipes A and B together can fill a cistern in 4hours.

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Ha

Two pipes P and Q can fill a cistern in 12 and 15 minutes re

A pipe can fill a cistern in 20 minutes whereas the cistern

A cistern has three pipes, A, B and

C. The pipes A and B can

C. The pipes A and B can