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    Question

    A train of length 540 metres crosses a man standing on

    platform in 18 seconds. If its speed decreases by 33⅓%, then find the time taken by train to cross a platform of length 660 metres.
    A 54 seconds Correct Answer Incorrect Answer
    B 56 seconds Correct Answer Incorrect Answer
    C 58 seconds Correct Answer Incorrect Answer
    D 60 seconds Correct Answer Incorrect Answer
    E 62 seconds Correct Answer Incorrect Answer

    Solution

    Speed of train = (540 ÷ 18) = 30 m/s New speed of train = (2/3) × 30 = 20 m/s Required time = (540 + 660) ÷ 20
    = 1200 ÷ 20
    = 60 seconds

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