Hey..!!

Both the pipes are opened together but after 4 min, pipe A is turnedoff.

What is the total time required to fill the tank

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Two pipes A and B can fill a tank in 15 min and 20 min respe

Two pipes A and B can fill a tank in 15 minutes and 20 minut

Two pipes can separately fill a tank in 20 and 30 hours resp

Two pipes A and B can fill a tank in 24 hours and 1717 hou

There are 12 pipes attached to atank.

Some of them are fill

Some of them are fill

A tank is filled by three pipes with uniformflow.

The first

The first

A tank is filled by three pipes with uniformflow.

The first

The first

A tank is filled by three pipes with uniformflow.

The first

The first

One pipe can fill a tank three times as fast as another pipe

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