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    Question

    A train of length 'y' meters

    takes 20 seconds to pass a signal pole. It also crosses a bridge that is (y + 480) meters long in 80 seconds. Find the value of y.
    A 240 m Correct Answer Incorrect Answer
    B 180 m Correct Answer Incorrect Answer
    C 165 m Correct Answer Incorrect Answer
    D 200 m Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    Speed of train = y / 20 m/s So, (y + y + 480) / (y / 20) = 80 2y + 480 = 4y 480 = 2y y = 240 So, the value of y is 240 meters.

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