To solve this problem, we can use the given ratio of girls to boys, which is 3 to 2.
Firstly, let's represent the number of girls with the ratio. Since there are 3 parts that represent girls, and we know there are 15 girls in total, we can deduce that each part is equal to the number of girls divided by 3 (because there are 3 parts for girls). So, each part of the ratio would represent:
15 girls / 3 = 5 girls per part
Now, if we have 2 parts representing boys (according to the ratio of 3 to 2), and we have already found that 1 part is equivalent to 5 girls, then the number of boys is:
5 boys per part * 2 parts = 10 boys
So, there are 10 boys in this group.
Now, if we want to find the total number of students, we need to add the number of girls and the number of boys together:
15 girls + 10 boys = 25 students
So the total number of students in the group is 25.
