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SSC Sample Paper Mock Test-18 SSC CGL Tear-II Paper-1

  • question_answer
    The sum of the ages of a mother and son is 45 yr. Five years ago the product of their ages was 4 times the mother's age at that time. The present ages of the mother and son, respectively are

    A) 36 yr, 9 yr

    B)         39 yr, 6 yr

    C)  42 yr, 12 yr

    D)  25 yr, 10 yr

    Correct Answer: A

    Solution :

    Present ages of mother and son\[=x\] years and  \[(45-x)\]years Then, \[(x-5)(45-x-45)=4\,\,(x-5)\] or         \[-{{x}^{2}}+41x-180=0\] or         \[x=36\] \[\therefore \]The present ages of mother and son are 36 yr and 9 yr respectively.


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