A man can walk up .a 'moving-up' escalator in 30 seconds. The same man can walk down this 'moving-up' escalator in 90 seconds. Assume that his walking speed is same upwards and downwards. How much time will he take to walk up the escalator, when it is not moving? `30\ s e c` b. `45\ s e c` c. `60\ s e c` d. `90\ s e c`

A person walks up a stalled 15 m long escalator in 90 s. When standing on the same escalator, now moving, the person is carried up in 60 s. How much time would it take that person to walk up the moving escalator? Does the answer depend on the length of the escalator?

A person walks up a stalled escalator in 90 s. When standingon the same escalator, now moving, he is carried in 60 s.The time it would take him to walk up the moving escalator will be:

A person climbs up a stalled escalator in 60s. If standing on the same but escalator running with constant velocity, he takes 40 s. How much time is taken by the person to walk up the moving 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 train 240 m, long passed a pole in 24 seconds. How long will it takes to pass a platform 650 m long? 65 s e c b. 100 s e c c.89 s e c d. 150 s e c

If Karan travels at a speed of 60 kmph and covers a distance in 9 hrs., then how much time will he take to travel the same distance at a speed of 90 kmph? 8 h r s b. 6 h r s c. 12 h r s d. 9 h r s

A train 110 metres long is running with a speed of 60 kmph. In what time will it pass a man who is running at 6 kmph in the direction opposite to that in which the train is going? 5 s e c b. 6 s e c c. 7 s e c d. 10 s e c

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 the moving escalator will be.

A man standing on a moving escalator, completes a certain distance in time t_(1) . If the escalator does not move then man covers this distance in time t_(2) by walking. (i) How much time will he take to cover the same distance if he move on the moving escalator in the same direction ? (ii) How much time will he take to cover the same distance if he move on the moving escalator in the opposite direction ?