Hey..!!

Some of them are fill pipes and some are drainpipes.

Each of the fill pipes can fill the tank in 12 hours, while each of the drain pipes will take 24 hours to drain a full tankcompletely.

If all the pipes are kept open when the tank was empty, it takes 2 hours for the tank tooverflow.

How many of these pipes are drain pipes

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There are 12 pipes attached to atank.

Some of them are fill

Some of them are fill

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

A water tank is two-fifthfull.

Pipe A can fill a tank in 10

Pipe A can fill a tank in 10

A water tank is two-fifthfull.

Pipe A can fill a tank in 10

Pipe A can fill a tank in 10

A water tank is two-fifthfull.

Pipe A can fill a tank in 10

Pipe A can fill a tank in 10

Two pipes can fill a tank in 18 minutes and 15minutes.

An o

An o

For irrigational purposes, a farmer uses a tank ofwater.

He

He

Two taps A and B can fill a tank in 5 hours and 20 hours res

A and B are two taps which can fill a tank individually in 1

An electric pump can fill a tank in 3hours.

Because of a le

Because of a le