A pump on the ground floor of a building can pump up water to fill a tank of volume 
in 15 min. If the tank is 40 m above the ground, and the efficiency of the pump is 30%, how much electric power is consumed by the pump? (Take 
)
Text Solution
Verified by ExpertsThe correct answer is:
B
: Here,
Volume of water 
Height, h = 40m
Efficiency, 
Density of water = 
of water pumped = Volume × Density
Efficiency, 
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