Question No. 7 Ria took an entrance exam and scored 180 marks. There were a total of 120 questions in the exam. Every right answer was awarded +4 marks while -1 marks were awarded for every unanswered question and -2 marks for every wrong answer. What is the maximum number of questions Ria could have answered incorrectly?
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do it by yourself
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65 question incorrectly ria make
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