What is the Speed of the Train? If

A 120 mts long train crosses a tree in 6 seconds. What is the speed of the train in kilometer per hour?

  1. 60 km/hr
  2. 75 km/hr
  3. 90 km/hr
  4. 72 km/hr
Monis Rasool Professor Asked on 28th July 2015 in Maths.
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1 Answer(s)

Answer: (4) 72 km/hr
Explanation:-
The length of the train = 120 m
Time taken by train to crosses a tree = 6 sec

Then, the speed of the train = 120/6
= 20 m/sec

Speed in km/hr = 20 x 18/5
= 4 x 18
= 72 km/hr
Hence, the answer is (4) 72 km/hr.

Anurag Mishra Professor Answered on 28th July 2015.
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