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Question
In a class test containing 10 questions, 5 marks are awarded for every correct answer and (− 2) marks are awarded for every incorrect answer and 0 for questions not attempted.
Mohan gets four correct and six incorrect answers. What is his score?
Solution
Marks given for 1 correct answer = 5
Marks given for 4 correct answers = 5 × 4 = 20
Marks given for 1 wrong answer = −2
Marks given for 6 wrong answers = −2 × 6 = −12
Score obtained by Mohan = 20 − 12 = 8
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