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JEE Mains Model Paper 4

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Question : 32

Total: 90

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

(t1+t2) / 2
t1t2 / (t2−t1)
t1t2 / (t2+t1)
t1−t2

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