Two trains travelling in the same direction at 40 and 22 km/hr completely pass each other in 1 minute. If the length of the first train is 125 meters, what is the length of second train?
Q1. Two trains travelling in the same direction at 40 and 22 km/hr completely pass each other in 1 minute. If the length of the first train is 125 meters, what is the length of second train?
Answer: 175
Explanation: Relative speed = 18 km/h = 5 m/s; in 60 s total distance = 300 m; second train length = 300 − 125 = 175 m.