A train 200 meters long is traveling at a speed of 72 km/h. How long will it take to pass a platform 100 meters long?
Show answer & explanation
Correct answer: C
Explanation
Length of the train = 200 meters
Length of the platform = 100 meters
Total distance = 200 + 100= 300 meters
Speed of the train = 72 × 5/18= 20 meters/second
Time = 300 ÷ 20= 15 seconds