2. Sample Papers
  3. SSC

SSC Sample Paper SSC CGL - Sample Paper-30

  • question_answer
    In a city, 40% of the adults are illiterate while 85% of the children are literate. If the ratio of the adults to that of the children is 2 : 3, then what per cent of the population is literate?

    A) 20%                             

    B) 25%

    C) 50%                             

    D) 75%

    Correct Answer: D

    Solution :

    Let the number of adults and children be 2x and 3x respectively. Then, literate population\[=(100-40)%\] of \[2x+85%\] of 3x \[=\left( \frac{60}{100}\times 2x \right)+\left( \frac{85}{100}\times 3x \right)=\frac{6x}{5}+\frac{51x}{20}=\frac{75x}{20}.\] \[\therefore \] Required percentage \[=\left( \frac{75x}{20}\times \frac{1}{5x}\times 100 \right)%=75%\]


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