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

  • question_answer
    A boat goes 40 km upstream in 8 h and 36 km downstream in 6 h. The speed of the boat in still water is

    A) 6.5 km/h

    B) 5.5 km/h

    C) 6 km/h

    D) 5 km/h

    Correct Answer: B

    Solution :

    [b] Let the speed of the boat be x km/h and the speed of water be y km/h. Then, \[x-y=\frac{40}{8}=5\]                     …(i) And      \[x+y=\frac{36}{6}=6\]                   …(i) on solving Eqs. (i) and (ii), we get \[x=5.5\]and\[y=0.5\]


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