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You took a 20 question exam scored in this way: 10 points awarded for each correct answer, and 5 points deducted for each wrong answer. You answered all 20 and received a score of 125 points. How many
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You took a 20 question exam scored in this way: 10 points awarded for each correct answer, and 5 points deducted for each wrong answer. You answered all 20 and received a score of 125 points. How many questions did you get wrong.

User TomC
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You got 15 questions wrong.
User Tom Hemmes
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