Q. Two trains start from same point in opposite directions at speeds 50 km/h and 70 km/h. How far apart will they be after 3 hours?
✅ Correct Answer: (C)
360 km
Explanation: Relative speed = 120 km/h → Distance = 120×3 = 360 km.
Explanation by: Hriday
Relative speed = 120 km/h → Distance = 120×3 = 360 km.