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    Question

    A train crosses a pole and a platform of length 360 metres

    in 6 seconds and 18 seconds, respectively. Find the length of train.
    A 140 metres Correct Answer Incorrect Answer
    B 160 metres Correct Answer Incorrect Answer
    C 180 metres Correct Answer Incorrect Answer
    D 200 metres Correct Answer Incorrect Answer
    E 220 metres Correct Answer Incorrect Answer

    Solution

    Let the speed of train be 'v' m/s.
    Length of train = '6v' metres

    So, (6v + 360) ÷ 18 = 'v'

    Or, 6v + 360 = 18v
    Or, 12v = 360
    So, 'v' = 30

    Therefore, length of the train = 6 × 30 = 180 metres

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