Assuming there are only two genders in this classroom, male and female, the number of girls will be the number of boys subtracted from the total students in the classroom.
30 students - 12 boys = 18 girls
The ratio that represents the number of girls to boys is 18:12 which can be reduced like a fraction by dividing both numbers by the GCF (greatest common factor) which is 6
18/6 = 3
12/6 = 2
Therefore, the ratio of the number of girls to boys is 3:2.
Answers & Comments
Answer:
Step-by-step explanation:
Assuming there are only two genders in this classroom, male and female, the number of girls will be the number of boys subtracted from the total students in the classroom.
30 students - 12 boys = 18 girls
The ratio that represents the number of girls to boys is 18:12 which can be reduced like a fraction by dividing both numbers by the GCF (greatest common factor) which is 6
18/6 = 3
12/6 = 2
Therefore, the ratio of the number of girls to boys is 3:2.
Answer:
percentage of girls in class
=12/30×100
=12/3×10
=4×10
=40%