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    Question

    Train X running at a speed of 32 km/hr crosses train Y

    in 20 seconds. Find the speed of train Y (in km/hr), if the sum of the length of train X and Y is 650 meters and both trains running in the opposite direction. TYPE 46
    A 60 km/hr Correct Answer Incorrect Answer
    B 85 km/hr Correct Answer Incorrect Answer
    C 73 km/hr Correct Answer Incorrect Answer
    D 64 km/hr Correct Answer Incorrect Answer
    E 80 km/hr Correct Answer Incorrect Answer

    Solution

    Let speed of train Y be 'a' km/hr. According to question, => 20(32 + a) ├Ч (5/18) = 650 => 640 + 20a = 2340 => 20a = 1700 => a = 85 km/hr

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