a pump on the ground floor of a building can pump water to fill a tank of volume 40 meter cube in 20 minutes. if the tank 30 metre above the ground and the efficiency of the pump is 60% how much electric power is concerned by the pump given density of water is equals to 1000 kg per metre cube and acceleration due to gravity equals to 9.8 metre per second square
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Bhai bohoot hard sum hay easy send kiya kar nahi to Madam ko puch
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