At a school number of boys :number of girls = 11:9
There are 124 more boys than girls
Work out the total number of students at the school
Let's represent the number of boys as 11x and the number of girls as 9x, where x is a constant.
According to the problem, 11x - 9x = 124.
Simplifying the equation, we have 2x = 124.
Dividing both sides by 2, we find x = 62.
Now, we can find the total number of students:
Total number of students = Number of boys + Number of girls
= 11x + 9x
= 20x
= 20 * 62
= 1240.
Therefore, the total number of students at the school is 1240.