A train 125 meters long passes a man running at 5 km/h in the same direction in 10 seconds. Find the speed of the train. MCQ with Answer and Explanation
A train 125 meters long passes a man running at 5 km/h in the same direction in 10 seconds. Find the speed of the train.
A. 45 km/h
B. 54 km/h
C. 60 km/h
D. 50 km/h
Answer: Option D
Solution (By JKSSB Mock Tests)
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.
A locomotive express train passes a milestone column track point in 10 seconds flat. If the speed index of the train records at 54 km/h, find the length of the train layout.
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