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.