A class of 27 students. Fifteen are boys and the rest are girls. what is the ratio to girls and other students?
To find the ratio of girls to other students in the class, we first need to calculate the number of girls in the class. We already know that there are 27 students in total and 15 of them are boys.
To find the number of girls, we can subtract the number of boys from the total number of students:
Number of girls = Total number of students - Number of boys
= 27 - 15
= 12
So, there are 12 girls in the class.
To find the ratio of girls to other students, we compare the number of girls to the number of students who are not girls (boys and other genders). In this case, the number of other students is the same as the number of boys:
Number of other students = Number of boys
= 15
Now, we can calculate the ratio of girls to other students:
Ratio of girls to other students = Number of girls : Number of other students
= 12 : 15
The ratio can be simplified by dividing both the numerator and denominator by their greatest common divisor, which in this case is 3:
Ratio of girls to other students = 4 : 5
Therefore, the ratio of girls to other students in the class is 4:5.