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 / Catholic High / 2020 / SA2 Prelims / Paper 1 – Q14 [2 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2021/06/P6_SA2_2020_Catholic_High_Paper1_Q14-Qns.jpg?resize=400%2C260&ssl=1)
![P6 / ACS / 2018 / SA2 / Paper 2 – Q10 [3 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2019/07/P6_ACS_2018_Prelims_Paper2_Q10.jpg?resize=400%2C260&ssl=1)