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At a metro station, a girl walks up a st...

At a metro station, a girl walks up a stationary escalator in time `t_(1)`. If she remains stationary on the escalator, then the escalator take her up in time `t_(2)`. The time takne by her to walk up on the moving escalator will be

A

`(t_(1)+t_(2))//2`

B

`t_(1)t_(2)//(t_(2)-t_(1))`

C

`t_(1)t_(2)//(t_(2)+t_(1))`

D

`t_(1)-t_(2)`

Text Solution

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The correct Answer is:
C
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