2. Sample Papers
  3. Railways
  4. Quantitative Aptitude
  5. Time And Work

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

  • question_answer
    A gang of labours promise to do a piece of work in 10 days, but 5 out of them become absent. If the rest of the gang do the work in 12 days, find the original number of men.

    A)  30                   

    B)  40      

    C)  25                   

    D)  35

    Correct Answer: A

    Solution :

    [a] More men, less time (Indirect) Let original number of men = x
    No of men No of Days
    X 10
    \[x-5\] 12
    \[\frac{x}{x-5}=\frac{12}{10}\] \[\Rightarrow \] \[10x=12x-60\] \[\Rightarrow \] \[2x=60\Rightarrow x=30\]


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