Answer with Explanation:

Let Ronit's present age be x years. Then, father's present age =(x + 3x) years = 4x years.

Therefore,(4x + 8) = 5/2(x + 8)

=> 8x + 16 = 5x + 40

=> 3x = 24

=> x = 8.

Hence, required ratio = (4x + 16)/(x + 16) = 48/24 = 2.