Multiple choice

The ratio between the ages of A and B is 2:5. After 6 years, their ages will be in the ratio 1:2. What is the difference between their present ages?

  1. 20 years

  2. 16 years

  3. 22 years

  4. 18 years

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

Let A's age = 2x, B's age = 5x. After 6 years: (2x+6)/(5x+6) = 1/2. Cross-multiplying: 4x + 12 = 5x + 6, so x = 6. Current ages: A = 12, B = 30. Difference = 18 years. Option D is correct.