Q. A train 100 m long passes a man running at 5 km/h in same direction in 10 seconds. What is the speed of the train?
✅ Correct Answer: (C)
45 km/h
Explanation: Relative speed = 100/10 =10 m/s =36 km/h → Train speed =36+5≈45 km/h.
Explanation by: Hriday
Relative speed = 100/10 =10 m/s =36 km/h → Train speed =36+5≈45 km/h.