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SSC Sample Paper Mock Test-12 SSC CGL Tear-II Paper-1

  • question_answer
    A wall of 100 m can be built by 7 men or 10 women in 10 days. How many days will 14 men and 20 women take to build a wall of 600 m?

    A) 15        

    B)  20    

    C)  25

    D)  30

    Correct Answer: A

    Solution :

    7 men = 10 women \[\Rightarrow \] 1 man \[=\frac{10}{7}\]women \[\therefore \]14 men + 20 women \[=\left( \frac{10\times 14}{7}+20 \right)\]women = 40 women Now, more work, more days More women, less days        \[\left. \begin{matrix}    \text{Work} & 1 & : & 6  \\    \text{Women} & 40 & : & 10  \\ \end{matrix} \right\}:\,\,:10:x\] Where, x = Number of days \[\Rightarrow \]   \[1\times 40\times x=6\times 10\times 10\] \[\Rightarrow \]   \[x=\frac{600}{40}=15\,\,\text{days}\]


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