Question

the average age of boys in class is 16.66 while the average age of the girls is 18.75. thus the average age of all the 40 students of the class is 17.5 . if the difference between the number of boys and girls is 8 then the number of girls in the class is
​

Answer 1

Answer:

I am not understand sorry

Answer 2

Answer:

I don't understand please tell me clearly