Mathematics, 01.06.2021 14:00, gamer85
In a test, +3 marks are given for every correct answer and -1 mark are given for every incorrect answer. Sona attempted all the questions and scored +20 marks, though she got 10 correct answers. How many incorrect answers has she attempted? (ii) How many questions were given in the test?
Answers: 2
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In a test, +3 marks are given for every correct answer and -1 mark are given for every incorrect ans...
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