78. Score Calculation in a Quiz Out of 108 questions, a person gets zero. Find out the number of questions he got wrong, given that each question carries 1 mark and there is a negative marking of 1/3 for each wrong question answered. Added 24 January 2014 · Updated 5 July 2026 Show Solution Solution: Assuming he answered all 108 questions: Let: Correct answers = x Wrong answers = 108−x Score: x− 3 1 (108−x)=0 Multiply by 3: 3x−108+x=0 4x=108 x=27 So he got: 108−27=81 wrong answers. Answer: 81 wrong, 27 correct.
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