Question
Tina participated in one History test. There were 39 questions in the test. She scored 2 points for every question answered correctly. However, 1 points would be deducted for every question answered wrongly. How many questions did Tina answer correctly if she scored 39 points?
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Tina participated in one History test. There were 39 questions in the test. She scored 2 points for every question answered correctly. However, 1 points would be deducted for every question answered wrongly. How many questions did Tina answer correctly if she scored 39 points?