Question:
In 2018, there were 864 children in a dance club. In 2019, some boys and girls joined the club. As a result, there was a 20% increase in the number of boys and 25% increase in the number of girls. Then the ratio of the number of boys to the number of girls in 2019 was 6 : 5. How many girls were there in the club in 2019?
Solution:
![P6 / Nanyang / 2019 / SA1 / Paper 2 – Q16 [5 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/05/P6_Nanyang_2019_SA1_Paper2_Q16-Qns.jpg?resize=400%2C260&ssl=1)
![P6 / Nanyang / 2019 / CA1 / Paper 1 – Q21 [2 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2022/04/P6_CA1_2019_Nanyang_Paper1_Q21-Qns.jpg?resize=400%2C185&ssl=1)