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  4. Quantitative Aptitude
  5. Time And Work

Railways Quantitative Aptitude Time And Work Sample Paper Time and Work Sample Test Paper-10

  • question_answer
    If 18 binders bind 900 books in 10 days, how many binders will be required to bind 660 books in 12 days?

    A)  14

    B)                     13

    C)  22                   

    D)  11

    Correct Answer: D

    Solution :

    [d] Let required number of binders be ?x? Less books, less binders (direct) More days, less binders (indirect) \[\left. \begin{matrix}    Books & 900 & :660  \\    Days & 12 & :10  \\ \end{matrix} \right\}::18:x\] \[900\times 12\times x=660\times 10\times 18\] \[x=\frac{660\times 10\times 18}{900\times 12}=11\]


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