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    Question

    A train 200 m long running at 54 km/hr takes 40 seconds

    to cross a bridge. The length of the bridge is
    A 250 metre Correct Answer Incorrect Answer
    B 450 metre Correct Answer Incorrect Answer
    C 400 metre Correct Answer Incorrect Answer
    D 500 metre Correct Answer Incorrect Answer

    Solution

    Speed of train = 54 km/hr = 54 ├Ч (5 / 18) = 15 m / sec If the length of bridge be x metre, then тЗТ 15 = (200 + x)/40 тЗТ 200 + x = 600 тЗТ x = 600 тАУ 200 = 400 metre

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