Railways Sample Paper RRB (Group D) Sample Test Paper-6

  • question_answer
    In a family, the average age of a father and a mother is 35 years. The average age of the father, mother and their only son is 27 years. What is the age of the son?

    A)  12 years          

    B)  11 years

    C)  10.5 years        

    D)  10 years

    Correct Answer: B

    Solution :

    [b] Father + mother \[=2\times 35=70\] Years Father + mother + son \[=27\times 3=81\,\,years\] \[\therefore \]Son's age \[=81-\,70=11\] years


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