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A competitive exam, 5 marks are given for every correct answer, (-2) marks are given for every incorrect answer and no marks for not attempting any question. a. Sara scored 24 marks. How many questions has she attempted incorrectly if she got 14 correct answers?
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A competitive exam, 5 marks are given for every correct answer, (-2) m...
Calculation of Incorrectly Attempted Questions
- Sara scored 24 marks in the competitive exam.
- 5 marks are given for every correct answer and (-2) marks are given for every incorrect answer.
- If Sara got 14 correct answers, she earned 14 * 5 = 70 marks from correct answers.
- Let the number of incorrectly attempted questions be x.
- Sara lost 2 marks for each incorrect answer, which means she lost 2x marks.
- Total marks earned by Sara = Total marks from correct answers - Total marks deducted for incorrect answers.
- 24 = 70 - 2x
- 2x = 70 - 24
- 2x = 46
- x = 23
Therefore, Sara has attempted 23 questions incorrectly.
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A competitive exam, 5 marks are given for every correct answer, (-2) marks are given for every incorrect answer and no marks for not attempting any question. a. Sara scored 24 marks. How many questions has she attempted incorrectly if she got 14 correct answers?
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