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    Question

    A man swims downstream 49 km and upstream 35 km, taking

    7 hr each time. What is the velocity of current?┬а ┬а
    A 1 km/hr Correct Answer Incorrect Answer
    B 0.5 km/hr Correct Answer Incorrect Answer
    C 1.5 km/hr Correct Answer Incorrect Answer
    D 2 km/hr Correct Answer Incorrect Answer

    Solution

    Speed downstream = 49/7 = 7 km/hr Speed upstream = 35/7 = ┬а 5 km/hr ManтАЩs rate in still water= (7 тАУ 5) * ┬╜ = 1 kmph

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