What was your score?
Let's see how you did. Total up your score by giving yourself one point for each correctly answered question.

Grade yourself according to the following:

Points Percentile Grade
19 - 21 90% - 100% A
17 - 18 80% - 89% B
15 - 16 70% - 79% C
13 - 14 60% - 69% D
0 - 12 0% - 59% FAIL