Explanation:

- Let the present age of Ranjan be 3x and Sanjay's be 2x.

- According to the problem, Sanjay's age after 8 years will be equal to Ranjan's age 8 years ago:

$$ \text{2x + 8 = 3x - 8} $$

- Solving for x gives:

$$ \text{2x + 8 = 3x - 8} $$

$$ \text{16 = x} $$

- So, present age of Sanjay = 2x = 32 years.

- Irfan is 12 years older than Sanjay, so:

$$ \text{Irfan's age = 32 + 12 = 44 years} $$

- Therefore, the present age of Irfan is 44.