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    Question

    Length of a train, whose speed is 48 km/h, is 240 metres.

    Find the time taken (in seconds) by train to cross a bridge of length 360 metres.
    A 25 seconds Correct Answer Incorrect Answer
    B 30 seconds Correct Answer Incorrect Answer
    C 36 seconds Correct Answer Incorrect Answer
    D 40 seconds Correct Answer Incorrect Answer
    E 45 seconds Correct Answer Incorrect Answer

    Solution

    Speed of train = 48 km/h = 48 × (5/18) = 40/3 m/s
    Required time = (240 + 360) ÷ (40/3) = 600 × (3/40) = 45 seconds

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