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 / Methodist Girls / 2020 / SA2 Prelims / Paper 1 – Q19 [1 mark]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2022/01/P6_Methodist_Girls_2020_SA2_Paper1_Q19-Qns.jpg?resize=400%2C260&ssl=1)