Test Academy | At a metro station, a girl walks up a stationary escalator in time t1 . If she remains stationary on the escalator, then the escalator take her up in time t2. The time taken by her to walk up on the moving escalator will be (t1 + t 2)/2, t1t2/(t2–t 1), t1t2/(t2+t 1), t1

Question

At a metro station, a girl walks up a stationary escalator in time t1 . If she remains stationary on the escalator, then the escalator take her up in time t2. The time taken by her to walk up on the moving escalator will be

Options :

(t1 + t 2)/2
t1t2/(t2–t 1)
t1t2/(t2+t 1)
t1–t2

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