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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 taken 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

Verified by Experts

The correct Answer is:
B
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