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

    Question

    Average speed of ‘A’ during a 26-hour journey is 26

    km/h. If he covered the first 120 km of his journey at a speed of 20 km/h, then find the speed at which ‘A’ travelled during the remaining journey.
    A 25.8 km/h Correct Answer Incorrect Answer
    B 20.8 km/h Correct Answer Incorrect Answer
    C 29.8 km/h Correct Answer Incorrect Answer
    D 27.8 km/h Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Total distance covered by ‘A’ = 26 × 26 = 676 km Time taken to cover 120 km = 120/20 = 6 hours Time taken to cover remaining distance = 26 – 6 = 20 hours So, required speed = {(676 – 120)/20} = 27.8 km/h

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