60% of the students are boys. 50% of the boys and 80% of the girls wear glasses. What percentage of the students do not wear glasses?
Boys |
Girls |
Total |
60% |
40% |
100% |
Wear glasses |
Do not wear |
Wear glasses |
Do not wear |
|
30% |
30% |
32% |
8% |
100% |
Number of boys who wear glasses
= 50% x 60%
=
50100 x 60%
= 30%
Number of girls who wear glasses
= 80% x 40%
=
80100 x 40%
= 32%
Percentage of students who wear glasses
= 30% + 32%
= 62%
Percentage of students who do not wear glasses
= 100% - 62%
= 38%
Answer: 38%