Question:
April went to the supermarket to buy some toilet rolls for the family. Toilet rolls were sold at the prices shown below. She bought 1 big pack and 2 small packs. She paid the cashier $50 and received $21 change. What is the value of n?
Solution:
![P6 / Raffles Girls / 2019 / SA2 / Paper 2 – Q06 [3 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/07/P6_Raffles_2019_Prelims_Paper2_Q06-Qns.jpg?resize=400%2C260&ssl=1)
![P6 / Red Swastika / 2020 / SA2 Prelims / Paper 2 – Q06 [3 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/11/P6_Red_Swastika_2020_SA2_Paper2_Q06-Qns.jpg?resize=400%2C260&ssl=1)