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SSC Sample Paper Mock Test-9 SSC CGL Tear-II Paper-1

  • question_answer
    The average age of eleven players of a cricket team decreases by 2 months when two new players are included in the team replacing two players of ages 17 yr and 20 yr. The average age of new players is

    A) 17 yr 1 month

    B)  17 yr 7 months

    C)  17 yr 11 months

    D)  18 yr 3 months

    Correct Answer: B

    Solution :

    Average age of new players \[=\left\{ (20+17)11\times \frac{2}{12} \right\}\times \frac{1}{2}=\frac{422}{12\times 2}=\frac{211}{12}\] \[\Rightarrow \]   \[=17\frac{7}{12}=17\,\,\text{yr}\]7 month


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