SOLUTION: In a multiple choice test there are 20 questions. A correct answer to a question earns 2 marks, and an incorrect answer results in a deduction of one mark. Sarah acheived a mark of
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Question 1011330: In a multiple choice test there are 20 questions. A correct answer to a question earns 2 marks, and an incorrect answer results in a deduction of one mark. Sarah acheived a mark of 19. How many questions did she get right? Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Let = number of questions she got right = number she got incorrect
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She got 13 questions right
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check:
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