Here’s and example of a **SMART MATH** problem for **AVERAGES.**

**Problem**

**Problem**

The average age of 40 boys of a class is 12 years. When 10 new boys are admitted, the average is increased by 0.1 year. What is the average age of the new boys?

- 12.1 years
- 12.4 years
- 12.3 years
- 12.5 years
- 13.0 years