A train 150 meters long is running at 72 km/h. How long will it take to pass a platform of length 250 meters? MCQ with Answer and Explanation

Explanation:
Speed of train = 120 / 6 = 20 m/s. Total distance to pass platform = 120 + 240 = 360 meters. Time required = 360 / 20 = 18 seconds.

Explanation:
New Speed = 3/4 of usual speed, so New Time = 4/3 of usual time. Change in time = 4/3 * T - T = 1/3 * T = 20 minutes. Usual time T = 60 minutes.

Explanation:
Upstream speed = 30 / 5 = 6 km/h. Downstream speed = 50 / 5 = 10 km/h. Speed of current stream = (Downstream speed - Upstream speed) / 2 = (10 - 6) / 2 = 2 km/h.