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SSC Quantitative Aptitude Boats & Streams Question Bank Train and Boat (II)

  • question_answer
    In a river, a man takes 3 h in rowing 3 km upstream or 15 km downstream. What is the speed of the current?

    A) 2 km/h

    B) 4 km/h

    C) 6 km/h

    D) 9 km/h

    Correct Answer: A

    Solution :

    [a] Speed upstream\[=\frac{3}{3}\,km/h=1\,km/h\] Speed downstream\[=\frac{15}{3}\,km/h\] Speed of current\[=\frac{1}{2}(5-1)\,km/h\] \[=2\,km/h\]


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