A train 100 meters long passes an extension platform 300 meters long in 20 seconds. What is the speed of the train in km/h? MCQ with Answer and Explanation

Explanation:
Speed = 160 / 8 = 20 m/s. In km/h = 20 * (18/5) = 72 km/h.

Explanation:
Speed of train = 72 * (5/18) = 20 m/s. Length of train layout = Speed * Time = 20 * 15 = 300 meters.

Explanation:
Relative speed = 125 / 10 = 12.5 m/s = 12.5 * (18/5) = 45 km/h. Since they are in the same direction: Relative Speed = Speed of train - Speed of man => 45 = Speed of train - 5 => Speed of train = 50 km/h.