The platform of a 400 m long station starts exactly where the last span of a 1.2 km long bridge ends. How long will a 200 m long train, travelling at the speed of 72 km/h, take to cover the distance between the starting point of the span of the bridge and the far end of the platform?
Show answer & explanation
Correct answer: C
Explanation
Correct Answer is option 3 i.e. 1.5 min
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Understanding |
Application |
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Given: Length of train = 200 m Length of platform = 400 m Length of Bridge = 1.2 km Speed of the train = 72 km/hr = 72 × 5/18 = 20 m/s |
It is given that the platform starts exactly where the last span of the bridge ends. Hence, The distance between the starting point of the span of the bridge and the far end of the platform = 1200 + 400 = 1600 m Distance covered by train = 1600 + 200 = 1800 m Time taken by train = 1800/20 = 90 seconds = 1.5 min |