SOLUTION: if one question is incorrect out of a five question quiz, what would the grade for the quiz be?

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Question 848235: if one question is incorrect out of a five question quiz, what would the grade for the quiz be?
Answer by swincher4391(1107) About Me  (Show Source):
You can put this solution on YOUR website!
1 incorrect = 4 correct
4/5 = x/100
400 = 5x
x = 80%