a test paper has 20 multiple choice question each correct answer is awarded 3 marks but - 2 marks are given for every wrong answer rashi scores 5 marks in a test if she answers 7 questions correctly find the number of questions she did not answer correctly and also the number of questions she did not attempt
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7×3=21
21-16=6
6×-2=-12
21--12
21+12
21-16=6
6×-2=-12
21--12
21+12
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yes
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