2. Sample Papers
  3. SSC

SSC Sample Paper SSC CGL - Sample Paper-19

  • question_answer
    The ratio of the number of boys and girls in a college is 3 : 2. If 20% of boys and 25% of girls are adults, the percentage of those students who are the not adults, is

    A) 58%                             

    B) 67.5%

    C) 78%                 

    D) 82.5%

    Correct Answer: C

    Solution :

    Let the number of boys and girls in the college be 3x and 2x respectively. Number of minor boys \[=3x\times \frac{80}{100}=\frac{12x}{5}\] Number of minor girls \[=2x\times \frac{75}{100}=\frac{3x}{2}\] Total number of minor students \[=\frac{12x}{5}+\frac{3x}{2}\]             \[=\frac{24x+15x}{10}=\frac{39x}{10}\] Required percentage \[=\frac{39x}{10\times 5x}\times 100=78%\] 


You need to login to perform this action.
You will be redirected in 3 sec spinner