Question:
Kenneth took part in a quiz in which he had to answer 70 questions. In the quiz, 5 marks were awarded for each correct answer and 2 marks were deducted for each wrong answer. Kenneth scored a total of 182 marks for the quiz.
(a) What is the difference between his greatest possible score and his actual score?
(b) How many questions did he answer wrongly?
Solution:
![P6 / Nanyang / 2019 / CA1 / Paper 2 – Q10 [3 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2022/04/P6_CA1_2019_Nanyang_Paper2_Q10-Qns.jpg?resize=400%2C260&ssl=1)
![P6 / Raffles Girls / 2020 / SA2 Prelims / Paper 2 – Q16 [5 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/11/P6_Raffles_Girls_2020_SA2_Paper2_Q16-Qns.jpg?resize=400%2C260&ssl=1)