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    1. Home
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    3. Quantitative Aptitude
    4. Boats and streams
    5. A boy can swim in water with a speed of 15 km/hr in still water. If the speed of the stream is 8 km/

    Question

    A boy can swim in water with a speed of 15 km/hr in

    still water. If the speed of the stream is 8 km/hr, what will be the time taken by the boy to cover 69 km downstream?
    A 2 hrs Correct Answer Incorrect Answer
    B 3 hrs Correct Answer Incorrect Answer
    C 5 hrs Correct Answer Incorrect Answer
    D 6 hrs Correct Answer Incorrect Answer

    Solution

    Downstream Speed = (15 + 8) km/hr = 23 km/hr Time taken = 69/23 = 3 hours

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