Q. A train crosses a man standing on a platform in 6 seconds and crosses the platform in 18 seconds. What is the length of the platform?
✅ Correct Answer: (B)
120 m
Explanation: Train length = x; Speed = x/6; (x+platform)/18 = x/6 → platform = 2x = 120 m.
Explanation by: Hriday
Train length = x; Speed = x/6; (x+platform)/18 = x/6 → platform = 2x = 120 m.