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Discussion :: Boats and Streams

  1. A man's speed with the current is 15 km/hr and the speed of the current is 2.5 km/hr. The man's speed against the current is:

    2. A.

    8.5 km/hr
    B.

    9 km/hr
    C.

    10 km/hr
    D.

    12.5 km/hr

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    Answer : Option C

    Explanation :

    Man's rate in still water = (15 - 2.5) km/hr = 12.5 km/hr.

    Man's rate against the current = (12.5 - 2.5) km/hr = 10 km/hr.

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