The speed of a train is 40 km/hr. Length of the train is 500 metres. How much time (in minutes) the train will take to cross a man standing on the platform?
Show answer & explanation
Correct answer: B
Explanation
Speed = 40 km/h
= 40 × 5/18
= 100/9 m/s
Time = Distance / Speed
= 500 / (100/9)
= 45 seconds
= 45/60
= 3/4