Question

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

Answer 1

that would be  20 % of 40% =  1/5 of 40%   = 8%  answer

Answer 2

40/100 X 20/100
2/5 X 1/5
2/25
8%