30% of the pupils are boys. 30% of the boys and 80% of the girls wear caps. What percentage of the pupils do not wear caps?
Boys |
Girls |
Total |
30% |
70% |
100% |
Wear caps |
Do not wear |
Wear caps |
Do not wear |
|
9% |
21% |
56% |
14% |
100% |
Number of boys who wear caps
= 30% x 30%
=
30100 x 30%
= 9%
Number of girls who wear caps
= 80% x 70%
=
80100 x 70%
= 56%
Percentage of pupils who wear caps
= 9% + 56%
= 65%
Percentage of pupils who do not wear caps
= 100% - 65%
= 35%
Answer: 35%