Ms. Quarles gave a math unit test to each of her four classes. Each class has the same number of students. Ms. Quarles grades 25% of the tests, which is 30 papers. How many students does she have in each class?(1 point)
n=
She graded 30 papers, which is 25% of the total number of papers. So, the total number of papers is:
30 / 0.25 = 120
Since each class took the same test and has the same number of students, the total number of students is divided equally among the four classes. Thus, the number of students in each class is:
120 / 4 = 30
Therefore, there are 30 students in each of Ms. Quarles' four classes. Hence, n = 30.