Q. A train crosses a platform in 30 seconds at 72 km/h. If the train is 240 m long, what is the platform length?
✅ Correct Answer: (C)
360 m
Explanation: Speed = 20 m/s → Distance = 20×30 = 600 m → Platform = 600−240 = 360 m.
Explanation by: Hriday
Speed = 20 m/s → Distance = 20×30 = 600 m → Platform = 600−240 = 360 m.