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

  • question_answer
    A boat goes 6 km/h in still water but it takes thrice as much time in going the same distance against the current. The speed the current (in km/h) is

    A) 127

    B) 121

    C) 117

    D) 108

    Correct Answer: C

    Solution :

    [c] Let x km/h is the speed of the current. Then,   \[(6+x)=3\,(6-x)\] \[\Rightarrow \]            \[6+x=18-3x\] \[\therefore \]    \[x=3\]


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