In a class test (+3)marks are given for every correct answerand (-2) marks are given for every incorrect answer and no marks for not attempting anyquestion. Radhika scored 20 marks, if she has got 12 correct answers, how many questions has she attempted incorrectly ?
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correct answers = 3x12
=36
marks scored = 20
wrong marks = 36-20
= 16
wrongly answered questions= 16 /2
=8
Therefore, she answered 8 wrong questions....
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