Question:
The pupils in a school are divided equally into Group X and Group Y. The ratio of the number of boys to the number of girls in Group X is 3 : 1 and in Group Y, it is 1 : 2. What is the ratio of the total number of girls to the total number of pupils?
Solution:
![P6 / Nan Hua / 2019 / SA1 / Paper 2 – Q03 [2 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/05/P6_Nan_Hua_2019_SA1_Paper2_Q03-Qns.jpg?resize=400%2C216&ssl=1)
![P6 / ACS / 2018 / SA1 / Paper 1 – Q05 [1 mark]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2021/04/P6_SA1_2018_ACS_Paper1_Q05-Qns.jpg?resize=400%2C260&ssl=1)