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SSC Sample Paper SSC CGL - Sample Paper-21

  • question_answer
    How may men will be required to plough 100 acres of land in 10 days, if 10 men require 8 days to plough 20 acres of land?

    A) 30                                

    B) 40

    C) 50                                

    D) 60

    Correct Answer: B

    Solution :

    \[{{M}_{1}}=10,\] \[{{D}_{1}}=8,\] \[{{W}_{1}}=20\] and       \[{{M}_{2}}=x(let),\] \[{{D}_{2}}=10,\] \[{{W}_{2}}=100\] \[\therefore \]      \[\frac{{{M}_{1}}{{D}_{1}}}{{{W}_{1}}}=\frac{{{M}_{2}}{{D}_{2}}}{{{W}_{2}}}\] \[\therefore \]      \[\frac{10\times 8}{20}=\frac{x\times 10}{100}\] \[\Rightarrow \]   \[x=8\times 5=40\]


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