Question

Adrienne answered all 21 multiple choice questions correctly. If her teacher decided to let one of the questions count as bonus, worth the same number as the other problems on the test, what was Adrienne's score? Write your answer as a decimal and percent.
Plz tell me how to do it too :)

Answer 1

105% 
Since there would be 20 that normally go to her grade, each question is worth 5 points.