Multiple choice

The respective ratio between the present ages of Sushil and Sunil is 7:10. After 2 years, the ratio between their ages will be 5:7. What is Sushil is present age?

  1. 20 yr

  2. 28 yr

  3. 40 yr

  4. 24 yr

  5. None of these

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

Let present ages be 7x and 10x. After 2 years: (7x+2)/(10x+2) = 5/7. Cross-multiply: 7(7x+2) = 5(10x+2) → 49x + 14 = 50x + 10 → x = 4. Sushil's age = 7x = 28 years.