Question

    A man can row his boat with the stream at 42 km/h and against the stream in 7 km/hours. The man’s rate is

    A 20.5 km/hr Correct Answer Incorrect Answer
    B 22.5 km/hr Correct Answer Incorrect Answer
    C 24.5 km/hr Correct Answer Incorrect Answer
    D 21.5 km/hr Correct Answer Incorrect Answer

    Solution

    Man's rate in still water = 1/2 (42 + 7) = 24.5 km/hr

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