2. Questions Bank
  3. SSC
  4. Quantitative Aptitude
  5. Average

SSC Quantitative Aptitude Average Question Bank Average (II)

  • question_answer
    The average score of a class of boys and girls in an examination is A The ratio of boys and girls in the class is 3 : 1. If the average score of the boys is \[(A+1),\] the average score of the girls is

    A) \[(A-1)\]

    B) \[(A-3)\]

    C) \[(A+1)\]

    D) \[(A+3)\]

    Correct Answer: B

    Solution :

    [b] Let there be 3m boys and m girls. Total score \[=4mA.\] Total score of boys \[=3m\,\,(A+1)=3mA+3m\] Total score of girls \[=4mA-(3mA+3m)=(mA-3m)\] Average score of girls \[=\frac{(mA-3m)}{m}=\frac{m\,(A-3)}{m}=(A-3)\]


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