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A train 1350 m long takes 135 seconds to cross a man running at a speed of 5kmph in a direction same to that of the train. What is the speed of the train?

A60 km/h

B41 km/h

C52 km/h

D86 km/h

Answer:

B. 41 km/h

Read Explanation:

Let the speed of the train be x km/h Relative speed = (x - 5) km/h (x - 5) =(1350/135) x 18/5 x - 5 = 36 ⇒ x = 36 + 5 = 41 km/h


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