Question:
The average of 6 numbers is 78. When one number was removed, the average increased by 9. What is the number that was removed?
Solution:
Empowering Students and Parents with Solutions
Empowering Students and Parents with Solutions
![P6 / CHIJ / 2018 / SA2 / Paper 2 – Q09 [3 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2019/08/P6_CHIJ_2018_Prelims_Paper2_Q09.jpg?resize=400%2C260&ssl=1)
