A pump motor is used to deliver water at a certain rate from a given pipe. To obtain, twice as much water from the same pipe, in the same time, the power of motor has to be increased to n times. Find n.

A pump motor is used to deliver water at a certain rate from a given p

1.	A pump motor is used to deliver water at a certain rate from a given pipe. To obtain, twice as much water from the same pipe, in the same time, the power of motor has to be increased to n times. Find n.
Answer» ANSWER :8