what is the boy-girl ratio in a class of 32 pupils if there are 18 girls?

32 - 18 = 14 boys

14/18 = 7/9 or 7:9

7/16 :)

12

To find the boy-girl ratio in a class of 32 pupils, you need to calculate the number of boys first.

Given that there are 18 girls, you can subtract this number from the total number of pupils:

Total number of pupils - Number of girls = Number of boys
32 - 18 = 14

So, there are 14 boys in the class.

To calculate the boy-girl ratio, divide the number of boys by the number of girls:

Boy-Girl ratio = Number of boys / Number of girls
14 / 18 = 7/9

Therefore, the boy-girl ratio in the class is 7:9.