In a certain class 40% of the students are girls, and 20% of the girls wear glasses. What percent of students in the class are girls who wear glasses.
A
6%
B
8%
C
20%
Correct Answer: 8%
Let the total number of students in a class = 100 40% of students are girls. Number of girls in a class = 20% of the girls wear glasses. Number of girls wear glasses = Percentage of the children in the class are girls who wear glasses = = 8% ans: 8%