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6, you must get at least 24 of the questions correct to make an 80%. I found this by setting up a proportion:

x questions 80 %

_________ = ________

30 questions 100%

= 24 question (must be answered correctly)

30-24= 6 questions (can be answered incorrectly)

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2011-12-29 17:58:08
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Q: How many questions can you miss to get an 80 percent on a 30 question test?
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