Question:
In a test, the average class score was 77 marks. Mr Lim discovered that he had recorded 14 students’ marks wrongly. After adding 3 marks to each of these students, the average class scores became 79. How many students were there in the class?
Solution:
![P6 / Maha Bodhi / 2019 / SA1 / Paper 2 – Q11 [3 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/04/P6_MahaBodhi_2019_SA1_Paper2_Q11-Qns.jpg?resize=400%2C204&ssl=1)
