Answer:
3:2
Step-by-step explanation:
Given:
Total students = 30
Girls = 18
To find the number of boys:
Number of boys = Total students - Girls
Number of boys = 30 - 18 = 12 boys
Ratio = 18:12
Simplify by 6, we get:
Ratio = 3:2
So, the ratio of girls to boys in the class in its lowest terms is 3:2.