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    Question

    Train A running at a speed of 48 km/hr crosses train B

    in 30 seconds. Find the speed of train B (in km/hr), if the sum of the length of train A and B is 600 meters and both trains running in the opposite direction.
    A 19 km/hr Correct Answer Incorrect Answer
    B 13 km/hr Correct Answer Incorrect Answer
    C 20 km/hr Correct Answer Incorrect Answer
    D 24 km/hr Correct Answer Incorrect Answer

    Solution

    Let speed of train B be ‘x’ km/hr. According to question, => 30(48 + x) × (5/18) = 600 => 1440 + 30x = 2160 => 30x = 720 => x = 24 km/hr

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