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Preeti reached the metro station and fou...

Preeti reached the metro station and found that the escalator was not working. She walked up the stationary escalator in time `t_1`. On other days, if the remains stationary on the moving escalator, then the escalator takes 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_1t_2)/(t_1-t_2)`

C

`(t_1t_2)/(t_1+t_2)`

D

`t_1-t_2`

Text Solution

Verified by Experts

The correct Answer is:
C
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