40% of the students are boys. 60% of the boys and 80% of the girls wear scarves. What percentage of the students do not wear scarves?
Boys |
Girls |
Total |
40% |
60% |
100% |
Wear scarves |
Do not wear |
Wear scarves |
Do not wear |
|
24% |
16% |
48% |
12% |
100% |
Number of boys who wear scarves
= 60% x 40%
=
60100 x 40%
= 24%
Number of girls who wear scarves
= 80% x 60%
=
80100 x 60%
= 48%
Percentage of students who wear scarves
= 24% + 48%
= 72%
Percentage of students who do not wear scarves
= 100% - 72%
= 28%
Answer: 28%