30% of the students are boys. 60% of the boys and 70% of the girls wear caps. What percentage of the students do not wear caps?
Boys |
Girls |
Total |
30% |
70% |
100% |
Wear caps |
Do not wear |
Wear caps |
Do not wear |
|
18% |
12% |
49% |
21% |
100% |
Number of boys who wear caps
= 60% x 30%
=
60100 x 30%
= 18%
Number of girls who wear caps
= 70% x 70%
=
70100 x 70%
= 49%
Percentage of students who wear caps
= 18% + 49%
= 67%
Percentage of students who do not wear caps
= 100% - 67%
= 33%
Answer: 33%