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    Question

    A train running with a speed of 153 km/hr can cross a

    pole in 13 seconds and a platform in 17 seconds. Find the length of the platform.
    A 100 Correct Answer Incorrect Answer
    B 150 Correct Answer Incorrect Answer
    C 140 Correct Answer Incorrect Answer
    D 170 Correct Answer Incorrect Answer

    Solution

    Speed of the train = 153 × (5/18) = 42.5 m/sec Length of the train = 42.5 × 13 = 552.5 metres Let the length of the platform be ‘x’ metres Therefore, 552.5 + x = 42.5 × 17 Or, x = 722.5 – 552.5 = 170 metres

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