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    Question

    A train with a length of 230 metres, moving at a speed of

    48 km/h, takes 50 seconds to cross a platform. Find the platform's length.
    A 480.5 m Correct Answer Incorrect Answer
    B 545.5 m Correct Answer Incorrect Answer
    C 436.5 m Correct Answer Incorrect Answer
    D 335.5 m Correct Answer Incorrect Answer

    Solution

    ATQ,

    Let the length of the platform be тАШxтАЩ metres

    Speed of the train = 48 ├Ч (5/18) = 13.33 m/s

    ATQ,

    (x + 230) = 13.33 ├Ч 50

    Or, (x + 230) = 666.5

    Or, x = 666.5 - 230

    Or, x = 436.5

    Therefore, the length of the platform = 436.5 metres

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