Multiple choice

Age of two persons are in the ratio of 5 : 7. 18 years ago, their ages were in the ratio of 8 : 13. Their current ages are:

  1. 45 and 63 years

  2. 50 and 70 years

  3. 40 and 80 years

  4. 45 and 75 years

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

Let current ages be 5x and 7x. Eighteen years ago: (5x-18)/(7x-18) = 8/13. Cross-multiply: 13(5x-18) = 8(7x-18). Solving gives x = 10. Current ages: 50 and 70 years (option B).