A train moving at the rate of 36 km per hour crosses a standing man in 10 seconds. It will cross a platform 55 meters long in?
Correct Answer: 151 / 2 seconds
Explanation:
speed of train = 36 x (5/18) = 10 m/sec.
Let the length of the train be L meters
Then, L/10 = 10
⇒ L = 100 meters. ∴ Time taken to cross the platform = (100 + 55) / 10 = 151/2 sec.