Question

In a certain class 40% of the students are girls; and 20% of the girls wear glasses, what percentage of the children in the class are girls who wear glasses?

Answer 1

For example
let there be 100 students

so the number of girls=40
20% of girls=20%of40=20*40/100=8 wear glasses
Which means 8 out of 100 students wear glasses
So 8%students wear glasses