70% of the pupils are girls. 50% of the girls and 80% of the boys wear caps. What percentage of the pupils do not wear caps?
Girls |
Boys |
Total |
70% |
30% |
100% |
Wear caps |
Do not wear |
Wear caps |
Do not wear |
|
35% |
35% |
24% |
6% |
100% |
Number of girls who wear caps
= 50% x 70%
=
50100 x 70%
= 35%
Number of boys who wear caps
= 80% x 30%
=
80100 x 30%
= 24%
Percentage of pupils who wear caps
= 35% + 24%
= 59%
Percentage of pupils who do not wear caps
= 100% - 59%
= 41%
Answer: 41%