Correct Answer - Option 2 : 5 yrs
Given:
The ages of Mitali and Raj are in a ratio = 12 : 7
After 8 years the ratio of their ages = 4 : 3
Calculation:
Let present age of Mitali = 12x
Let present age of Raj = 7x
⇒ (12x + 8)/(7x + 8) = 4/3
⇒ 36x + 24 = 28x + 32
⇒ 36x - 28x = 32 – 24
⇒ 8x = 8
⇒ x = 1
∴ Required Difference = 12x – 7x = 5x
= 5 × 1
= 5
∴ the difference in their ages is 5.