SOLUTION: 20% of students receive a grade of B, and 5% receive a grade of A. If 9 more students receive B's than A's, how many students are there?

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: 20% of students receive a grade of B, and 5% receive a grade of A. If 9 more students receive B's than A's, how many students are there?      Log On


   

Question 268947: 20% of students receive a grade of B, and 5% receive a grade of A. If 9 more students receive B's than A's, how many students are there?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
.2x=b
.05x=a
a+9=b
a=3
b=12
x=60
60 students