New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    TYPE 46

    Train X running at a speed of 34 km/hr crosses train Y

    in 24 seconds. Find the speed of train Y (in km/hr), if the sum of the length of train X and Y is 700 meters and both trains running in the opposite direction.
    A 90 km/hr Correct Answer Incorrect Answer
    B 85 km/hr Correct Answer Incorrect Answer
    C 71 km/hr Correct Answer Incorrect Answer
    D 65 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, => 24(34 + a) × (5/18) = 700 => 816 + 24a = 2520 => 24a = 1704 => a = 71 km/hr

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