SOLUTION: if I have 42 questions but get one incorrect, what percentage is correct?

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Question 670558: if I have 42 questions but get one incorrect, what percentage is correct?
Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
How many problems did you get correct?
42+-+1++=+41
Percentage is given by %28Part%2FWhole%29%2A+100
PercentCorrect+=+%2841%2F42%29+%2A+100
PercentCorrect+=+97.62