Q. Two trains start from the same point in the same direction at speeds 40 km/h and 60 km/h. After how much time will the faster train be 100 km ahead?
✅ Correct Answer: (B)
5 hrs
Explanation: Relative speed = 20 km/h → Time = 100/20 = 5 hrs.
Explanation by: Hriday
Relative speed = 20 km/h → Time = 100/20 = 5 hrs.