Question:
Mr Siah had 80 wallets for sale. The graph below shows the number of wallets he had left at the end of each day from Monday to Friday.
(a) On which day did Mr Siah sell the greatest number of wallets?
(b) Find the difference between the number of wallets sold on Monday and Friday.
Solution:
![P6 / Nan Hua / 2020 / SA2 Prelims / Paper 1 – Q29 [2 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2022/02/P6_SA2_2020_Nan_Hua_Paper1_Q29-Qns.jpg?resize=400%2C260&ssl=1)