40% of the pupils are boys. 40% of the boys and 50% of the girls wear scarves. What percentage of the pupils do not wear scarves?
Boys |
Girls |
Total |
40% |
60% |
100% |
Wear scarves |
Do not wear |
Wear scarves |
Do not wear |
|
16% |
24% |
30% |
30% |
100% |
Number of boys who wear scarves
= 40% x 40%
=
40100 x 40%
= 16%
Number of girls who wear scarves
= 50% x 60%
=
50100 x 60%
= 30%
Percentage of pupils who wear scarves
= 16% + 30%
= 46%
Percentage of pupils who do not wear scarves
= 100% - 46%
= 54%
Answer: 54%