Question:
Shanice needs to score 90 marks for her last Mathematics test in this semester so as to improve on her average score from 75 to 78. How many Mathematics tests were there altogether in a semester?
Solution:
Empowering Students and Parents with Solutions
![P6 / Maris Stella / 2019 / SA1 / Paper 2 – Q13 [4 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/04/P6_MarisStella_2019_SA1_Paper2_Q13-Qns-1.jpg?resize=400%2C260&ssl=1)
![P6 / Catholic High / 2020 / SA2 Prelims / Paper 1 – Q05 [1 mark]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2021/06/P6_SA2_2020_Catholic_High_Paper1_Q05-Qns.jpg?resize=400%2C260&ssl=1)