60% of the students are girls. 60% of the girls and 80% of the boys wear spectacles. What percentage of the students do not wear spectacles?
| Girls |
Boys |
Total |
| 60% |
40% |
100% |
| Wear spectacles |
Do not wear |
Wear spectacles |
Do not wear |
|
| 36% |
24% |
32% |
8% |
100% |
Number of girls who wear spectacles
= 60% x 60%
=
60100 x 60%
= 36%
Number of boys who wear spectacles
= 80% x 40%
=
80100 x 40%
= 32%
Percentage of students who wear spectacles
= 36% + 32%
= 68%
Percentage of students who do not wear spectacles
= 100% - 68%
= 32%
Answer: 32%
