IV) SOLVE THE FOLLOWING (4 MARKS EACH). (04) 12. In a class test (+3) marks are given for every correct answer and (-2) marks are given for every incorrect answer and no marks for not attempting any questions. (0) Radhika scored 20 marks. If she has got 12 correct answers, how many questions has she attempted incorrectly? Mohini scores -5 in this test, though she has got 7 correct answers. How many questions has she attempted incorrectly?
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cheating while exam huhhh???
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Answer:
Now, we know that for every incorrect answer =−2 marks. So, the total marks for incorrect answers = marks for incorrect answer × number of incorrect answers. Hence, the number of incorrect answers is 13.
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