relative motion

Level 2

Ajay traveling on platform with speed 18 km/hr. train of length 1km passes along him in 20 sec what is speed of train in km /hr ?


The answer is 198.

Vikas Gopale by Vikas Gopale , 31, India

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1 solution

Mrugesh Joshi
Mar 6, 2014

Speed of train with respect to man is 1 km/20 sec= 180 km/hr Man's speed is 18 km/hr So, speed of train is 180+18=198 Assume that both are running in same direction

1 Helpful 0 Interesting 0 Brilliant 0 Confused

It wasn't stated in the question. i kept thinking it was opposite

Aloysius Ng - 7 years ago

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exactly, even me :D :O @aloysius :D

Abhi Shek - 6 years, 9 months ago

It is given that he moves along the train

Sourabh Tiwari - 6 years, 7 months ago

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