Question

    A train crosses a pole and a platform of length 300

    metres in 9 seconds and 24 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

    Solution

    Let the speed of train be 'v' m/s.
    Length of train = '9v' metres

    So, (9v + 300) ÷ 24 = 'v'

    Or, 9v + 300 = 24v
    Or, 15v = 300
    So, 'v' = 20

    Therefore, length of the train = 9 × 20 = 180 metres

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