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Q.

A motor pump is delivering water at certain rate. In order to increase the rate of delivery by 200 %. The power of the motor is to be increased by

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a

800 %

b

2700 %

c

2600 %

d

700 %

answer is D.

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Detailed Solution

P∝n3 P2P1=n2n13=2n1n13=8 Power increases by 700%
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A motor pump is delivering water at certain rate. In order to increase the rate of delivery by 200 %. The power of the motor is to be increased by