Multiple Choice Questions on A man can row upstream at 7 kmph and downstream at 10 kmph Find man 39 s rate still water and the ra........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

A man can row upstream at 7 kmph and downstream at 10 kmph Find man 39 s rate still water and the ra...........

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    A man can row upstream at 7 kmph and downstream at 10 kmph. Find man's rate still water and the rate of current.

    4 km/hr and 1 km/hr

    Incorrect Answer

    8.5 km/hr and 1.5 km/hr

    Correct Answer

    6 km/hr and 2 km/hr

    Incorrect Answer

    6 km/hr and 3 km/hr

    Incorrect Answer
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    Explanation:

    Rate in still water = 1/2 (10 + 7) km/hr = 8.5 km/hr
    Rate of current = 1/2 (10 – 7) km/hr = 1.5 km/hr.

    By: Amit Kumar
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