A train 180 meters long is running at a speed of 54 km/h. How much time will it take to cross a platform 120 meters long?
Q1. A train 180 meters long is running at a speed of 54 km/h. How much time will it take to cross a platform 120 meters long?
Answer: 20 seconds
Explanation: Speed = 54 km/h = 15 m/s; total distance to cross = 180 + 120 = 300 m; time = 300/15 = 20 seconds.