Hi, I arrived at answer A in the following problem but would reallyappreciate it

Question

Hi,

I arrived at answer A in the following problem but would reallyappreciate it if someone could verify that I am correct.

What average mechanical power must be delivered by the muscles of a70.0kg mountain climber who climbs a summit of height 325m in95.0min. Note: due to inefficiencies in converting chemical energyto mechanical energy, the amount calculated here is only a fractionof the power that must be produced by the climber's body.
(a) 39.1W (b) 54.6 W (c) 25.5 W (d) 67.0W (e) 88.4W

I know P=W/T so I set W as equal to mgh and then converted mins toseconds. If I am not correct, please explain why.

Thanks,

Explanation / Answer

potential energy aquired by the person on climbing aheight = h

              U = mgh

m= mass of the person

h = height

since the time take to climb = T in sec

power produced by the climber P =U /T

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