A train 100 meters long takes 6 seconds to cross a man walking at 5 kmph in the direction opposite to that of the train. Find the speed of the train.

Choose the correct answer:

A) 23 sec

B) 14 sec

C) 74 sec

D) 55 sec

Detailed Explanation

Let the speed of the train be x kmph.

Speed of the train relative to man = (x + 5) kmph = (x + 5) *5/18 m/sec.

Therefore 100/ ((x+5)*5/18) =6 <=> 30 (x + 5) = 1800 <=> x = 55

Speed of the train is 55 kmph.

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A train 100 meters long takes 6 seconds to cross a man walking at 5 kmph in the direction opposite to that of the train. Find the speed of the train.

Choose the correct answer:

Detailed Explanation

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