Question:
John had a collection of local and foreign stamps. The ratio of the number of local stamps to the number of foreign stamps he had at first was 7 : 3. After giving away 46 foreign stamps, the ratio of the number of local stamps to the number of foreign stamps became 5 : 2. How many foreign stamps did John have in the end?
Solution:
![P6 / Maris Stella / 2020 / SA2 Prelims / Paper 1 – Q01 [1 mark]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2021/12/P6_SA2_2020_Maris_Stella_Paper1_Q01-Qns.jpg?resize=400%2C260&ssl=1)