There are some students in the stadium.
35 of them are girls, of whom 50% of them do not wear glasses.
12 of the boys do not wear glasses. What is the percentage of the students in the stadium who wear glasses?
| Girls |
Boys |
Total |
3x2 =
6 u |
2x2 =
4 u |
5x2 =
10 u |
| No glasses |
Glasses |
No glasses |
Glasses |
|
| 1x3 |
1x3 |
1x2 |
1x2 |
|
| 3 u |
3 u |
2 u |
2 u |
10 u |
50% =
50100=
12 The number of girls is the repeated identity. Make the number of girls the same. LCM of 3 and 2 is 6.
Number of students who wear glasses
= 3 u + 2 u
= 5 u
Total number of students
= 3 u + 3 u + 2 u + 2 u
= 10 u
Percentage of the students in the stadium who wear glasses
=
510 x 100%
= 50%
Answer(s): 50%
