in a competitive examination there are 60 students the correct answer full carry two marks and for incorrect a one mark will you subtracted Yashwant had attempted all the questions and he got total 90 marks then how many questions he got wrong???
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Answer:
30
Step-by-step explanation:
Marks if subtraction was not done =60*2=120
marks obtained=90
ie wrong answers cancelled 30 marks
and 1 wrong answers cancelled 1 marks so wrong answers are 30
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