Multiple choice

Present ages of Shibu and Sohail are in the ratio of 4 : 5. Eight years from now, the ratio of their ages will be 5 : 6. Find the difference in their ages.

  1. 5

  2. 7

  3. 10

  4. 8

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

Let ages be 4x and 5x. (4x + 8) / (5x + 8) = 5 / 6. 24x + 48 = 25x + 40. x = 8. The difference is 5x - 4x = x = 8.

AI explanation

Let the present ages of Shibu and Sohail be 4x and 5x respectively. Eight years from now, the ratio of their ages will be (4x + 8) / (5x + 8) = 5 / 6. Solving this equation gives 24x + 48 = 25x + 40, which means x equals 8. The difference in their ages is 5x minus 4x, resulting in 8.