50% of the students are boys. 30% of the boys and 40% of the girls wear hats. What percentage of the students do not wear hats?
Boys |
Girls |
Total |
50% |
50% |
100% |
Wear hats |
Do not wear |
Wear hats |
Do not wear |
|
15% |
35% |
20% |
30% |
100% |
Number of boys who wear hats
= 30% x 50%
=
30100 x 50%
= 15%
Number of girls who wear hats
= 40% x 50%
=
40100 x 50%
= 20%
Percentage of students who wear hats
= 15% + 20%
= 35%
Percentage of students who do not wear hats
= 100% - 35%
= 65%
Answer: 65%