in a class test 3 marks are awarded for a correct answer and -2 marks are awarded for a incorrect answer and no marks if not attempted .
1 . ammi scored 20 , she had 12 correct answers , how many answers were incorrect ?
2. rakesh scored -5 , though he attempted 7 answers , how many answers were incorrect .
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Answer:
1.Ammi scored =12 ×3 =36 marks.
As 3 mark for correct answer
Final score of ammi is 20.
She got 16 marks negative. As - 2marks are for incorrect answer
Therefore, she made 16/2 =8
8 incorrect answers
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