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A person walks up a stationary escalator...

A person walks up a stationary escalator in time `t_(1)`. If he remains stationary on the escalator, then it can take him up in time `t_(2)`. How much time would it take for him to walk up the moving escalator?

A

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

B

`sqrt(t_(1)t_(2)`

C

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

D

`t_(1)+t_(2)`

Text Solution

Verified by Experts

The correct Answer is:
C
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