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SSC Sample Paper SSC CHSL (10+2) Sample Test Paper-8

  • question_answer
    Three years ago, the average age of a family of 8 members was 30 years. If one child is also included in the family, the present average age of the family remained the same. Then the present age of the child is

    A)  6 years                        

    B)  1 year

    C)  3 years                        

    D)  4 years

    Correct Answer: A

    Solution :

     Present age of 8 members \[=30\times 8+3\times 8\] \[240+24=264\]years \[\therefore \]Present age of 9 members \[=\text{ }30\times 9=270\]years \[\therefore \] Child's present age \[=270-264=6\]years


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