80% of the students are boys. 30% of the boys and 80% of the girls wear scarves. What percentage of the students do not wear scarves?
| Boys |
Girls |
Total |
| 80% |
20% |
100% |
| Wear scarves |
Do not wear |
Wear scarves |
Do not wear |
|
| 24% |
56% |
16% |
4% |
100% |
Number of boys who wear scarves
= 30% x 80%
=
30100 x 80%
= 24%
Number of girls who wear scarves
= 80% x 20%
=
80100 x 20%
= 16%
Percentage of students who wear scarves
= 24% + 16%
= 40%
Percentage of students who do not wear scarves
= 100% - 40%
= 60%
Answer: 60%
