Multiple Choice Questions on A man rows boat 40 km upstream in 8 hours and a distance of 36 km downstream in 6 hours Then speed o........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

A man rows boat 40 km upstream in 8 hours and a distance of 36 km downstream in 6 hours Then speed o...........

Quantitative Aptitude ( CCS) Boats and Streams
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    A man rows boat - 40 km upstream in 8 hours and a distance of 36 km. downstream in 6 hours, Then speed of stream is

    0.5 km/hr

    Correct Answer

    1.5 km/hr

    Incorrect Answer

    1 km/hr

    Incorrect Answer

    3 km/hr

    Incorrect Answer
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    Explanation:

    Let the speed of boat in still water = x km/h
    Speed of a stream = y km/h
    Speed of boat in Downstream = x + y km/h
    Speed of boat in Upstream = x – y km/h
    Upstream = 40/8 = 5 km/hr
    Downstream = 36/6 = 6 km/hr
    Speed of stream = (6 – 5)/2 = 0.5 km/h

    By: Pranav Gupta
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