There are some students in the zoo.
110 of them are girls, of whom 70% of them do not wear spectacles.
59 of the boys do not wear spectacles. What is the percentage of the students in the zoo who wear spectacles?
| Girls |
Boys |
Total |
1x10 =
10 u |
9x10 =
90 u |
10x10 =
100 u |
| No spectacles |
Spectacles |
No spectacles |
Spectacles |
|
| 7x1 |
3x1 |
5x10 |
4x10 |
|
| 7 u |
3 u |
50 u |
40 u |
100 u |
70% =
70100=
710 The number of girls is the repeated identity. Make the number of girls the same. LCM of 1 and 10 is 10.
Number of students who wear spectacles
= 3 u + 40 u
= 43 u
Total number of students
= 7 u + 3 u + 50 u + 40 u
= 100 u
Percentage of the students in the zoo who wear spectacles
=
43100 x 100%
= 43%
Answer(s): 43%
