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    Question

    A train running at 90 km/h takes 18 seconds to pass a pole.

    Find the approximate time required for the train to cross a platform that is 0.8 times the length of the train.
    A 45 secs Correct Answer Incorrect Answer
    B 75 secs Correct Answer Incorrect Answer
    C 12 secs Correct Answer Incorrect Answer
    D 32 secs Correct Answer Incorrect Answer

    Solution

    ATQ,
    Length of the train = (90 × (5/18) × 18) = 450 metres
    Length of the platform = (450 × 0.8) = 360 metres
    Time taken by train to cross the platform = [(450 + 360) / (90 × (5/18))]= (810 / 25) = 32.4 seconds

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