Multiple Choice Questions on A man can swim 3 km hr in stillwater If the velocity of the stream is 2 km hr the time taken by him ........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

A man can swim 3 km hr in stillwater If the velocity of the stream is 2 km hr the time taken by him ...........

Quantitative Aptitude ( CCS) Boats and Streams
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    A man can swim 3 km/hr in stillwater. If the velocity of the stream is 2 km/hr., the time taken by him to swim to a place 10 km upstream and back is

    9 1/3 hr

    Incorrect Answer

    10 hr

    Incorrect Answer

    12 hr

    Correct Answer

    8 1/3 hr

    Incorrect Answer
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    Explanation:

    Rate downstream = 5 kmph
    Rate upstream = 1 kmph

    Required time = \frac{10}{5}+\frac{10}{1} = 12 hours

    Hence, option 3 is the correct answer.

    By: Amit Kumar
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