70% of the students are boys. 40% of the boys and 60% of the girls wear scarves. What percentage of the students do not wear scarves?
Boys |
Girls |
Total |
70% |
30% |
100% |
Wear scarves |
Do not wear |
Wear scarves |
Do not wear |
|
28% |
42% |
18% |
12% |
100% |
Number of boys who wear scarves
= 40% x 70%
=
40100 x 70%
= 28%
Number of girls who wear scarves
= 60% x 30%
=
60100 x 30%
= 18%
Percentage of students who wear scarves
= 28% + 18%
= 46%
Percentage of students who do not wear scarves
= 100% - 46%
= 54%
Answer: 54%