What is Father Present Age?

After five years, the age of a father will be thrice the age of his son, whereas five years ago, he was seven times old as his son was what is father’s present age?

  1. 35 years
  2. 40 years
  3. 45 years
  4. 50 years
Monis Rasool Professor Asked on 21st June 2015 in Reasoning Questions.
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  • 1 Answer(s)

    Answer: (2) 40 years.
    Explanation:-
    Let be the age of son is X years and age of father is Y years.
    According to the question,
    5 years after –
    Y + 5 = 3(X + 5)
    Y + 5 = 3X + 15
    Y – 3X = 10  …………….(1)
    5 years before –
    Y – 5 = 7(X – 5)
    Y – 5 = 7X – 35
    Y – 7X = -35 + 5
    Y – 7X = -30              ………………….. (2)
    Solve equation (1) & (2)
    X = 10
    Put the value of X = 10 in equation (1)
    Y – 3 x 10 = 10
    Y – 30 = 10
    Y = 10 + 30
    Y = 40 years.
    Hence, the the present age of father is 40 years.

    Anurag Mishra Professor Answered on 27th June 2015.
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