**5**

**Five years ago the average age of a family of 3 members was 27 years. **

A child has been born, due to which the average age of the family is 25 years today.

What is the present age of the child?

**Explanation:**

Average age of the family of 3 members

5 years ago = 27 years

Sum of the ages of the 3 members now

= (27+5) × 3 = 96 years

Average age of the family of 4members now

= 25 years

Sum of the ages of the 4 numbers now

= 25 × 4 = 100 years

Age of child = 100 – 96 = 4 years