Question

A school has 60% girls and 40% boys. If 20% of the girls wear glasses and 40% of the boys wear glasses, what percent of all students wears glasses?

Answer 1

If we assume total students be 100
No. of girls = 60
No. of boys = 40
No. of students wearing glasses = 20%of girls + 40% of boys = 12 + 16 = 28
So 28% students wear glasses in the school.