Ms. Quarles gave the same math unit test to all of her classes. She grades 25% of the test, which is 30 papers. How many students does Ms. Quarles have in total? n =

Answer 1

120 students.

To find the total number of students, we can set up a proportion:

30 papers is 25% of the total number of students.

(30 papers) / (25%) = (x students) / (100%)

30 / 0.25 = x / 100
x = 30 / 0.25
x = 120

Therefore, Ms. Quarles has a total of 120 students.