Multiple choice

The present age of Shweta and Tanish are in the ratio of 11:7 respectively. After 8 years. The ratio of their ages will be 15 : 11. What is the difference between their ages?

  1. 6 years

  2. 2 years

  3. 8 years

  4. 3 years

  5. 9 years

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

Let Shweta's age = 11x, Tanish's age = 7x. After 8 years: (11x+8)/(7x+8) = 15/11. Cross-multiply: 11(11x+8) = 15(7x+8). 121x + 88 = 105x + 120. 121x - 105x = 120 - 88. 16x = 32. x = 2. Difference = 11x - 7x = 4x = 8 years.