20% of the students are boys. 30% of the boys and 60% of the girls wear watches. What percentage of the students do not wear watches?
Boys |
Girls |
Total |
20% |
80% |
100% |
Wear watches |
Do not wear |
Wear watches |
Do not wear |
|
6% |
14% |
48% |
32% |
100% |
Number of boys who wear watches
= 30% x 20%
=
30100 x 20%
= 6%
Number of girls who wear watches
= 60% x 80%
=
60100 x 80%
= 48%
Percentage of students who wear watches
= 6% + 48%
= 54%
Percentage of students who do not wear watches
= 100% - 54%
= 46%
Answer: 46%