Explanation:

Let’s break down the problem:

- Let Aditya’s present age = x years.

- His mother’s age = x + 20 years (since the difference is 20 years).

- In 5 years:

- Aditya’s age = x + 5

- Mother's age = x + 25

- The mother’s age will be twice Aditya’s age:

x + 25 = 2(x + 5)

x + 25 = 2x + 10

25 - 10 = 2x - x

15 = x

So, Aditya’s present age is 15 years.

- Option 1: 12 years – Not correct

- Option 2: 15 years – Correct Answer

- Option 3: 10 years – Not correct

- Option 4: 20 years – Not correct

- Option 5: 18 years – Not correct