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:
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![P6 / ACS / 2018 / SA1 / Paper 1 – Q25 [2 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2021/04/P6_SA1_2018_ACS_Paper1_Q25-Qns.jpg?resize=400%2C260&ssl=1)