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?

Answer 1

If 30 papers represent 25% of the test, then 100% of the test would be represented by 30 x 4 = 120 papers.

Since each paper represents a student, Ms. Quarles has a total of 120 students.