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 / ACS / 2019 / CA1 – Q09 [1 mark]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2021/01/P6_ACS_2019_CA1_Q09-Qns.jpg?resize=400%2C260&ssl=1)
![P6 / Raffles Girls / 2020 / SA2 Prelims / Paper 2 – Q01 [2 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/11/P6_Raffles_Girls_2020_SA2_Paper2_Q01-Qns.jpg?resize=400%2C260&ssl=1)