Question

A man sitting on a train travelling at the rate of 50 km/hr observes that it takes 9 sec for goods train travelling in the opposite direction to pass him. If the goods train is 187.5m long. Find its speed.

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Answer 1

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Relative speed :-

=280/9 m / sec

= (280/9*18/5) kmph

= 112 kmph.

Speed of goods train

= (112 - 50) kmph

= 62 kmph.

Answer 2

Relative speed =

=280/9 m / sec

= (280/9×18/5) kmph

= 112 kmph.

Speed of goods train

= (112 - 50) kmph

= 62 kmph.

HOPE IT HELPS YOU!!!