In a test consisting of 10 questions, +5 marks are awarded for each correct answer and −1 marks are awarded for each incorrect answer.
Each question must be attempted.
What are the marks scored if you answered 5 questions correctly and 5 questions incorrectly
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Answer:
questions=10
correct=+5
incorrect=-1
5 questions correct= 5x5=25
5 questions incorrect=-1x5=-5
=>25-5
=>20 marks
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