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SSC Sample Paper SSC CHSL (10+2) Sample Test Paper-24

  • question_answer
    Shyam can swim at the speed of \[20\text{ }km/hr\]in still water. If the speed of the water is\[3\text{ }km/hr\], then the time taken by him to swim 30 km upstream is

    A)  \[\frac{17}{30}\]hours              

    B)  \[1\frac{17}{13}\] hours

    C)  \[1\frac{13}{17}\] hours                        

    D)  2 hours

    Correct Answer: C

    Solution :

     Speed of Shyam in still water\[=\text{ }20\text{ }km./hr\]. Upstream speed \[=20-3=17\text{ }km./hr\] \[\therefore \]  Time taken by Shyam to swim \[30\text{ }km\] \[=\,\,\,\,\,\,\frac{Distance}{Speed}=\frac{30}{17}=\underline{\mathbf{1}\frac{\mathbf{13}}{\mathbf{17}}\,\mathbf{Hours}}\]


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