80% of the students are girls. 40% of the girls and 50% of the boys wear hats. What percentage of the students do not wear hats?
Girls |
Boys |
Total |
80% |
20% |
100% |
Wear hats |
Do not wear |
Wear hats |
Do not wear |
|
32% |
48% |
10% |
10% |
100% |
Number of girls who wear hats
= 40% x 80%
=
40100 x 80%
= 32%
Number of boys who wear hats
= 50% x 20%
=
50100 x 20%
= 10%
Percentage of students who wear hats
= 32% + 10%
= 42%
Percentage of students who do not wear hats
= 100% - 42%
= 58%
Answer: 58%