Read the following information carefully and answer the questions given below.
In class 8th: the total number of students in the class is 60, and 40% of them are boys.
In class 9th: the ratio of the boys in the class to the girls in class 8th is \(7 : 4,\) respectively. The total number of students in the class is 40% more than that in class 8th.
In class 10th: the total number of girls in the class is \(14\tfrac{2}{7}\%\) more than that in class 9th, and the total number of boys in the class is 16.67% less than that in class 8th.
The total number of boys in class 11th is 5 more than the average number of girls in classes 8th and 10th.
If the total number of students in class 11th is 25% more than that in class 9th, then find the total number of girls in class 11th.