Multiple Choice Questions on A man goes downstream 60 km and upstream 20 km taking 4 hrs each What is the velocity of current ........ for Mathematics - All Exams Preparation

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Multiple Choice Questions

A man goes downstream 60 km and upstream 20 km taking 4 hrs each What is the velocity of current ........

Quantitative Aptitude ( CCS) Boats and Streams
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    A man goes downstream 60 km and upstream 20 km, taking 4 hrs each. What is the velocity of current?

    4 km/hr

    Incorrect Answer

    8 km/hr

    Incorrect Answer

    6 km/hr

    Incorrect Answer

    5 km/hr

    Correct Answer
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    Explanation:

    Downstream speed = 60/4 = 15 km/hr
    Upstream speed = 20/4 = 5 km/hr
    Velocity of stream = (15-5)/2 = 5 km/h

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