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The number of marks scored finally is 30 or 80 ?
Total number of qns = 60
Let N number of questions be answered correctly. Then (60 - N) number of questions are answered wrongly or left unanswered. Hence the total score would be:
N * 2 - (60 - N) = 30
3 N = 90
N = 30.
So 30 questions are answered correctly.
Total number of qns = 60
Let N number of questions be answered correctly. Then (60 - N) number of questions are answered wrongly or left unanswered. Hence the total score would be:
N * 2 - (60 - N) = 30
3 N = 90
N = 30.
So 30 questions are answered correctly.
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