Question

    A train traveling at a speed of 72 km/h takes 15 seconds

    to cross a pole. If the same train crosses a platform in 40 seconds, find the length of the platform.
    A 300 m Correct Answer Incorrect Answer
    B 400 m Correct Answer Incorrect Answer
    C 450 m Correct Answer Incorrect Answer
    D 500 m Correct Answer Incorrect Answer

    Solution

    Speed = 72 km/h = 20 m/s.  Length of train = 20 × 15 = 300 m.  Length of platform = 20 × 40 - 300 = 500 m.  Correct option: d

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