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7. In a class test (+ 3) marks are given for every correct answer and (– 2) marks are given for every
incorrect answer

By Luna

7. 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 question.
(0) Radhika scored 20 marks. If she has got 12 correct answers, how many questions has sho
attempted incorrectly?
(i) Mohini scores – 5 marks in this test though she has got 7 correct answers. How many questions
has she attempted incorrectly?
(ii) Rakesh scores 18 marks by attempting 16 questions. How many questions has he attempted
correctly and how many questions has he attempted incorrectly?
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About the author
Luna

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