Time, Speed & Distance

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


40 km/hr


30 km/hr


24 km/hr


25 km/hr

 Hide Ans

Option(D) is correct

Let the speed of goods train be $x$ km/hr.


\((50+x)\times \dfrac{5}{18}=\dfrac{187.5}{9}\)

⇒ x= 25 km/hr

(1) Comment(s)

Namrata Dash

Why the length of the train is not taken into consideration here?