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

    Question

    X started to run from point ‘A’ to ‘B’ at a

    speed of 21 km/hr at 9:00 am and Y started to run from point ‘B’ to ‘A’ at a speed of 18 km/hr at 11:00 am. If they meet each other at 3:00 pm then find the distance between points ‘A’ and ‘B’.
    A 198 km Correct Answer Incorrect Answer
    B 190 km Correct Answer Incorrect Answer
    C 128 km Correct Answer Incorrect Answer
    D 138 km Correct Answer Incorrect Answer

    Solution

    Distance covered by X in 2 hours = 21 × 2 = 42 km Relative speed of X and Y = 21 + 18 = 39 km/hr Sum of distance covered by both in 4 hours = 39 × 4 = 156 km Total distance between points ‘A’ and ‘B’ = 42 + 156 = 198 km

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