Question:
Each of the 3 cards below is printed with a different number. The number 9 is neither the smallest nor the largest number. When these numbers are added two at a time, the sums are 16, 28 and 30 respectively. What is the ratio of the smallest number to the largest number?
Solution:
![P6 / Nanyang / 2019 / CA1 / Paper 1 – Q05 [1 mark]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2022/04/P6_CA1_2019_Nanyang_Paper1_Q05-Qns.jpg?resize=400%2C260&ssl=1)
![P6 / ACS / 2020 / SA2 Prelims / Paper 1 – Q29 [2 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2021/05/P6_SA2_2020_ACS_Paper1_Q29-Qns.jpg?resize=400%2C260&ssl=1)