A pump on the ground floor of a building can pump up water to fill the tank of volume 
in 15 min. If the tank is 120 m above the ground, and the efficiency of the pump is 
, then how much electric power is consumed by the pump ( 
)?
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
As the efficiency 
of the engine is 
, and
Input power, 
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