Multiple choice

The present age of a father is 3 years more than three times the age of his son. Three years hence, father's age will be 10 years more than twice the age of the son. Find the present age of the father.

  1. 27 years

  2. 33 years

  3. 36 years

  4. 39 years

  5. 41 years
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Let son's age be S and father's age be F. F = 3S + 3. Three years hence: F+3 = 2(S+3) + 10 = 2S + 16. Substituting F: 3S+3+3 = 2S+16. S = 10. Therefore F = 3(10)+3 = 33 years.

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