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    Question

    A train that is 360 metres long passes a signal post in

    18 seconds. How long will it take to pass a bridge that is 240 metres long?
    A 18 secs Correct Answer Incorrect Answer
    B 20 secs Correct Answer Incorrect Answer
    C 12 secs Correct Answer Incorrect Answer
    D 30 secs Correct Answer Incorrect Answer

    Solution

    ATQ,

    Speed of train = 360 ├╖ 18 = 20 m/s Time taken to cross the bridge = (360 + 240) ├╖ 20 = 600 ├╖ 20 = 30 seconds

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