Mr. Caldwell has 28 students in his class and 12 of them are boys.
What is the ratio of girls to boys?
A.
4 : 7
B.
3 : 4
C.
4 : 3
D.
7 : 4
28 - 12 = 16
16 / 12 = 4 / 3 or 4:3
C.
28 - 12 = 16 are girls
16:12 = ?
Simplify that ratio to find your answer.
To find the ratio of girls to boys, we first need to determine how many girls are in Mr. Caldwell's class.
Given that there are 28 students in total and 12 of them are boys, we can subtract the number of boys from the total number of students to find the number of girls.
Total number of girls = Total number of students - Number of boys
Total number of girls = 28 - 12
Total number of girls = 16
So, there are 16 girls in Mr. Caldwell's class.
To find the ratio of girls to boys, we divide the number of girls by the number of boys:
Ratio of girls to boys = Number of girls : Number of boys
Ratio of girls to boys = 16 : 12
Now we simplify the ratio by dividing both the numerator and denominator by the greatest common divisor, which is 4 in this case:
Ratio of girls to boys = 4 : 3
Therefore, the correct answer is C. 4 : 3