Question

The number of students of a school was 450 last year, and it is 396 this year. By how many percent did the number decrease?

a. 12%
b. 11%
c. 10%
d. 9%

Answer 1

The number of students decreased by approximately 12%.

Step-by-step explanation:

To find the percentage decrease, we need to calculate the difference between the initial number of students and the final number of students, and then express this difference as a percentage of the initial number.

Percentage decrease = (Initial number - Final number)/Initial number * 100

Percentage decrease = (450 - 396)/450 * 100 = 54/450 * 100 ≈ 12%

Therefore, the number of students decreased by approximately 12%.