# What will be the Average Age of 4th Friends? If

The average age of 3 friends is 23. Even if the age of 4th friend is added, the average remains 23. what is the age of the 4th friend?

- 21 years
- 23 years
- 32 years
- None of these

**Answer: (2) 23 years**

**Explanation:-**

Let the age of new friend = X years

The average age of 3 friends = 23.

Then, the sum of the age of 3 friends = 23 x 3

= 69 years.

Then, the total age of 4 friends = (69 + X) years

According to the question,

69 + X = 23 x 4

69 + X = 92

X = 92 – 69

X = 23

Then, the age of fourth friend is 23 years.

Hence, the answer is (2) 23 years.