2. Sample Papers
  3. Railways
  4. Quantitative Aptitude
  5. Percentage

Railways Quantitative Aptitude Percentage Sample Paper Percentage Sample Test Paper-8

  • question_answer
    In an examination, a student who gets 20% of the maximum marks fails by 5 marks. Another student who gets 30% of maximum marks gets 20 marks more than the pass mark. The necessary percentage required for passing is

    A)  23%                

    B)  20%

    C)  32%    

    D)  22%

    Correct Answer: D

    Solution :

    [d] Let the maximum marks in the examination = x According to question, 20% of x + 5 = 30% of \[x20\] \[\Rightarrow \] \[\frac{x}{5}+5=\frac{3x}{10}-20\] \[\Rightarrow \] \[\frac{3x}{10}-\frac{x}{5}=25\] \[\Rightarrow \] \[\frac{x}{10}=25\] \[\Rightarrow \] \[x=250\] Passing marks = 20% of \[250+5=\frac{20}{100}\times 250+5=55\] \[\therefore \] % passing marks \[=\left( \frac{55}{250}\times 100 \right)%=22%\]


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