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Two men with weights in the ratio 4:3 ru...

Two men with weights in the ratio 4:3 run up a staircase in time in the ratio 12:11. The ratio of power of the first to that of second is

A

`4/3`

B

`12/11`

C

`48/33`

D

`11/9`

Text Solution

Verified by Experts

The correct Answer is:
D
`"Power"=("work")/("time")=("energy")/("time")=(mgh)/t=(Wh)/t`
(W=weight)
`therefore P_1/P_2=W_1/W_2xxt_2/t_1=4/3xx11/12=11/9`(h is same in both cases )
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