John answered 12 questions correctly on a test with a total of 15 questions. What percent of the questions did he get INCORRECT?
A. 20%
B. 15%
C. 25%
D. 80%
12 correct means 3 out of 15 incorrect
3 / 15 * 100% = ________ %
(1215=45) so he got 80 percent right and (100−80=) 20 percent wrong.
A is correct.
Straight