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

  • question_answer
    A man rows a boat 18 km in 4 h downstream and returns upstream in 12 h. The speed of the stream (in km/h) is

    A) 1

    B) 1.5

    C) 2

    D) 1.7

    Correct Answer: B

    Solution :

    [b] If x km/h and y km/h be the respective speeds of boat and stream, then \[x+y=4.50\]                           …(i) and      \[x-y=1.50\]                             …(ii) On solving Eqs. (i) and (ii), we get \[x=3,\]\[y=1.5\]


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