80% of the students are boys. 30% of the boys and 70% of the girls wear glasses. What percentage of the students do not wear glasses?
Boys |
Girls |
Total |
80% |
20% |
100% |
Wear glasses |
Do not wear |
Wear glasses |
Do not wear |
|
24% |
56% |
14% |
6% |
100% |
Number of boys who wear glasses
= 30% x 80%
=
30100 x 80%
= 24%
Number of girls who wear glasses
= 70% x 20%
=
70100 x 20%
= 14%
Percentage of students who wear glasses
= 24% + 14%
= 38%
Percentage of students who do not wear glasses
= 100% - 38%
= 62%
Answer: 62%