Q. A train crosses a car moving at 18 km/h in opposite direction in 8 seconds. If train speed is 54 km/h, what is its length?
✅ Correct Answer: (C)
160 m
Explanation: Relative speed = (54+18)×5/18 = 20 m/s → Length = 20×8 = 160 m.
Explanation by: Hriday
Relative speed = (54+18)×5/18 = 20 m/s → Length = 20×8 = 160 m.