1985 AJHSME Problem 5
Problem
The bar graph shows the grades in a mathematics class for the last grading period. If A, B, C, and D are satisfactory grades, what fraction of the grades shown in the graph are satisfactory?
Solution
There are 5 As, 4 Bs, 3 Cs, 3 Ds, and 5 Fs. That means that The answer is