In a competitive examination, (+4) marks are given for every correct answer, (-2) marks are given for every incorrect answer and 0 marks for not attempting the question
a) Ruchi scored 20 marks. If she has got 12 correct answers, how many questions has she attempted incorrectly?
b) Rohit scored (-6) marks in thes test, though he has got 7 correct answers. How many questions s he attempted incorrectly?
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1st answer is seven , and second answer is there
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