A locomotive express train passes a milestone column track point in 15 seconds flat. If the speed index of the train records at 72 km/h, find the length of the train layout. MCQ with Answer and Explanation
A locomotive express train passes a milestone column track point in 15 seconds flat. If the speed index of the train records at 72 km/h, find the length of the train layout.
A. 300 meters
B. 280 meters
C. 320 meters
D. 350 meters
Answer: Option A
Solution (By JKSSB Mock Tests)
Speed of train = 72 * (5/18) = 20 m/s. Length of train layout = Speed * Time = 20 * 15 = 300 meters.
Explanation:
Time taken to cross the bridge alone = 15 - 9 = 6 seconds. Speed of train = 150 / 6 = 25 m/s. Length of train = Speed * Time to cross sign post = 25 * 9 = 225 meters.
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