A 10 H.P. motor pumps out water from a w...

A 10 H.P. motor pumps out water from a well of depth 20 m and fills a water tank of volume 22380 litres at a height of 10 m from the ground. The running time of the motor to fill the empty water tank is (`g=1=ms^(-2)`)

5 minutes

10 minutes

15 minutes

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