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SSC Sample Paper SSC CHSL (10+2) Sample Test Paper-4

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

    A)  6.5 km/hour                 

    B)  5.5 km/hour  

    C)  6 km/hour        

    D)         5 km/hour

    Correct Answer: B

    Solution :

     Speed upstream\[=\frac{40}{8}\]             \[=5\]kmph Speed downstream\[=\frac{36}{6}\]             \[=6\]kmph \[\therefore \]Speed of boat in still water             \[=\frac{1}{2}(5+6)=5.5\,\,kmph\]


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