Question

On the last test 40% of all students in Mrs.Well's class got grade A. How many students are studying in this class, if there were 28 A's on the test?

Answer 1

Let the total # of students in Mrs. W's class be s.  40% of these got the grade "A."  This comes to 28 grades of "A."  Then:  0.40s=28.
                                28
Solving for s, s = ---------- = ?
                              0.40

Answer 2

The answer would be 70. You would divide 28/.40