Multiple choice

The age of a father is twice that of his son's at the present age. After 8 years the sum of their ages will be 43 years. How old are they now?

  1. 12 years, 24 years

  2. 9 years, 18 years

  3. 10 years, 20 years

  4. 8 years, 16 years

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Let son's age = x. Father's age = 2x. After 8 years: (x+8) + (2x+8) = 43. So 3x + 16 = 43, 3x = 27, x = 9. Son is 9 years, father is 18 years now. Option B (9 years, 18 years) is correct. Verification: After 8 years, son will be 17, father will be 26, sum = 43.