Multiple choice

The ratio of the present ages of father and his son is 17 : 7. Six years before the ratio was 3 : 1, find the present age of father?

  1. 35 years

  2. 45 years

  3. 48 years

  4. 51 years

  5. None of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Let present ages be 17k and 7k. Six years ago: (17k-6)/(7k-6) = 3/1. Solving: 17k-6 = 21k-18, so 4k = 12 and k = 3. Father's present age = 17×3 = 51 years. Option D is correct.

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