The number of students in a school increases every year by 5%. If the number of the students in 2023 is 5,670, what was the number of students in 2022?

Correct option is C

Given:

The number of students in 2023 = 5670

Annual increase rate = 5%

We are to find the number of students in 2022 (i.e., 1 year before the increase)

Formula Used:

Original Value =$$\frac{\text{Increased Value}}{1 + \frac{r}{100}}$$​

Where:

Increased Value = value after increase

r = rate of increase

Solution:

Students in 2022 $$= \frac{5670}{1 + \frac{5}{100}}$$​

=$$\frac{5670}{1.05}$$​

= 5400