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 / Ai Tong / 2019 / SA2 / Paper 2 – Q03 [2 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/06/P6_Ai_Tong_2019_Prelims_Paper2_Q03-Qns.jpg?resize=400%2C260&ssl=1)
![P6 / CHIJ / 2019 / SA2 / Paper 2 – Q06 [3 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/06/P6_CHIJ_2019_Prelims_Paper2_Q06-Qns.jpg?resize=400%2C260&ssl=1)