Answer: 9 girls
Step-by-step explanation:
There are 15 boys, which means there are 3 groups of 5 (3 times 5 equals 15). Since there are 3 girls for every 5 boys, this means there are also 3 groups of girls, but there are 3 girls in each group instead of 5. 3 times 3 equals 9, so there are 9 girls. Total students equals 15 plus 9, or 24.4
