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    Question

    Train B crosses Train A, which is approaching from the

    opposite direction, in 28 seconds. If the combined length of Train A and Train B is 2240 meters, and Train A is moving at a speed of 32 m/s, what is the speed of Train B?
    A 28 m/s Correct Answer Incorrect Answer
    B 18 m/s Correct Answer Incorrect Answer
    C 48 m/s Correct Answer Incorrect Answer
    D 68 m/s Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Relative speed of train тАШBтАЩ w.r.t. train тАШAтАЩ = 2240/28 = 80 m/s Speed of train тАШBтАЩ = 80 тАУ 32 = 48 m/s

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