Question:
At an exhibition, the ratio of the number of men to the number of women was 10 : 3. Halfway through the exhibition, 110 men left and the number of men was 5/12 of the total number of people who remained behind. How many women were there at the exhibition?
Solution:
![P6 / Nan Hua / 2021 / SA2 / Paper 1 – Q04 [1 mark]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2022/08/P6_SA2_2021_Nan_Hua_Paper1_Q04-Qns.jpg?resize=400%2C260&ssl=1)
![P6 / Rosyth / 2019 / SA2 / Paper 2 – Q15 [4 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/07/P6_Rosyth_2019_Prelims_Paper2_Q15-Qns.jpg?resize=400%2C260&ssl=1)
Why do u need to times the ratio by 7?
Hi Emily, we want to make the number of units for Women the same between the two ratios.