A 50% Efficient Hydroelectric Power Plant Generates Electricity from Water

Multiple Choice

A 50% efficient hydroelectric power plant generates electricity from water falling a height of 110 m and at a rate of x kg/s.If the maximum possible power output of the plant was 27.0 MW,what is x?

A) 25,000 kg/s
B) 50,000 kg/s
C) 100,000 kg/s
D) 5100 kg/s
E) 510,000 kg/s