SOLUTION: if there are 42 questions on a test how many can you get wrong to score an average of 55%

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Question 955419: if there are 42 questions on a test how many can you get wrong to score an average of 55%
Found 2 solutions by macston, rfer:
Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
(.55)42=23.1 You must get 23.1 right to score 55%
42-23.1=18.9
ANSWER: The most you get wrong for at least 55% average is 18.

Answer by rfer(16322) About Me  (Show Source):