Question:
The participants of a competition are divided equally into 2 groups, Group A and Group B. In Group A, there are 30 more boys than girls. In Group B, there are 18 more girls than boys. 3/7 of all the participants are girls. How many participants are boys?
Solution:
![P6 / Henry Park / 2020 / SA2 Prelims / Paper 1 – Q19 [1 mark]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2021/08/P6_SA2_2020_Henry_Park_Paper1_Q19-Qns.jpg?resize=400%2C205&ssl=1)
![P6 / Rosyth / 2019 / SA1 / Paper 2 – Q10 [3 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/05/P6_Rosyth_2019_SA1_Paper2_Q10-Qns.jpg?resize=400%2C260&ssl=1)