Final answer:
There are 500 girls in the school.
Step-by-step explanation:
To find the number of girls in the school, we first need to determine the ratio of girls to boys.
The given information tells us that there are 5 girls for every 6 boys.
This means that for every 11 students, there are 5 girls and 6 boys.
To find the number of girls, divide the total number of students by the total number of students in each group (girls + boys) and then multiply by the number of girls in each group:
Number of girls = (5 / (5 + 6)) * 1100
= 500.
Therefore, there are 500 girls in the school.