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

    Question

    If a bus travel 15 km in 10 minute then how much time

    take if speed is decrease by 15 km/h?
    A 12min Correct Answer Incorrect Answer
    B 8min Correct Answer Incorrect Answer
    C 10min Correct Answer Incorrect Answer
    D 25min Correct Answer Incorrect Answer

    Solution

    Distance covered in 10 minutes = 15 km.  So the speed of the bus = (15/10) × 60 = 90 km/hr  Reduced speed = (90 – 15) km/hr = 75 km/hr  Time taken to cover 15 km = (60/75) × 15 = 12 minutes

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