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

Question

N= ?

Answer 1

To find the total number of students Ms. Quarels has, you can set up a proportion:

25% of total students = 30
25% of N = 30

Now, you can solve for N:

0.25N = 30
N = 30 / 0.25
N = 120

Ms. Quarels has a total of 120 students.