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SSC Sample Paper Mock Test-18 SSC CGL Tear-II Paper-1

  • question_answer
    A man can row at 5 km/h in still water. If the velocity of current is 1 km/h and it takes him 1 h to row to a place and come back, how far is the place?

    A) 2.5 km

    B)  3 km   

    C)  2.4 km.

    D)  3.6 km 

    Correct Answer: C

    Solution :

    Let the distance be \[x\] fern. Speed upstream \[=5+1=4\,\,\text{km/h}\] Speed downstream\[5+1=6\,\,\text{km/h}\] \[\therefore \]      \[\frac{x}{6}+\frac{x}{4}=1\]\[\Rightarrow \]\[\frac{2x+3x}{12}=1\]\[\Rightarrow \]\[5x=12\] \[\Rightarrow \]   \[x=\frac{12}{5}=2.4\,\,\text{km}\]


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