Srinivas has just got married to a girl who is 4 years younger than him. After 5 years their average age will be 33 years. Find the present age of the girl.

Srinivas's wife is 4 years younger than him.

After 5 years, their average age will be 33 years.

Let Srinivas's current age be x.

Then, his wife's current age will be x - 4.

After 5 years, their ages will be:

Srinivas's age: x + 5

Wife's age: x – 4 + 5 = x + 1

The average of their ages after 5 years is given as 33 years:

​$$\frac{(x + 5) + (x + 1)}{2} = 33$$​​

​$$\frac{2x + 6}{2} = 33$$​​

2x + 6 = 66

2x = 60

x = 30

Now, the present age of the girl (Srinivas's wife) is:

x − 4 = 30 – 4 = 26

Thus, The present age of the girl is 26 years.