Q. A train moving at 90 km/h crosses a platform in 15 seconds. If platform length is 100 m, what is the train length?
✅ Correct Answer: (D)
275 m
Explanation: Speed = 25 m/s → Distance = 25×15 = 375 m → Train = 375−100 = 275 m.
Explanation by: Hriday
Speed = 25 m/s → Distance = 25×15 = 375 m → Train = 375−100 = 275 m.