A 20-question test had a possible score of 200 points. 10 points were given for each correct answer and 5 points were deducted for every wrong answer. Your score was 140. How many questions did you get wrong?
Answer:
4..........A score of 140 means you lost 60 points. For every wrong answer, you lose 10 points plus the 5-point penalty, or 15 points. 60/15 = 4
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