What is the present age of the child?

The average age of a husband and wife, who were married 7 years ago, was 25 years at the time of their marriage. now the average age of the family, including husband, wife and a child (born during the interval) is 22 years. What is the present age of the child?

  1. 4 years
  2. 2 years
  3. 5 years
  4. None of these
Anurag Mishra Professor Asked on 7th January 2016 in Maths.
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  • 1 Answer(s)

    Answer: (2) 2 years

    Explanation:-
    The average age of a husband and his 7 years ago = 25 years
    Then, the sum of their present age = 2 (25 + 7)
    = 2 x 32
    = 64 years

    A child born within 7 years so, their average ages is 22 years
    Then, the sum of their age = 3 x 22
    = 66 years

    Thus, the present age of child = 66 – 64
    = 2 years

    Hence, the correct answer is option (2) 2 years.

    Anurag Mishra Professor Answered on 8th January 2016.
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