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% = ________ %
(\(\frac{12}{15}=\frac{4}{5}\)) so he got 80 percent right and (\(100-80=\)) 20 percent wrong.
A is correct.
Straight
