In a test containing 20 questions, 3 marks are given for every correct answer and -1 mark is given for every incorrect answer. A student attempts all the questions but only 11 of his questions are correct. What is his total score?
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Answer:
Total score for A = 24
Marks awarded for A = 11×3 = 33
Marks reduced for A = 9×-1 = -9
= 33-9 = 24
Total score for A = 24
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