There are some students in the bird park.
35 of them are girls, of whom 40% of them do not wear spectacles.
12 of the boys do not wear spectacles. What is the percentage of the students in the bird park who wear spectacles?
Girls |
Boys |
Total |
3x5 = 15 u |
2x5 = 10 u |
5x5 = 25 u |
No spectacles |
Spectacles |
No spectacles |
Spectacles |
|
2x3 |
3x3 |
1x5 |
1x5 |
|
6 u |
9 u |
5 u |
5 u |
25 u |
40% =
40100=
25 The number of girls is the repeated identity. Make the number of girls the same. LCM of 3 and 5 is 15.
Number of students who wear spectacles
= 9 u + 5 u
= 14 u
Total number of students
= 6 u + 9 u + 5 u + 5 u
= 25 u
Percentage of the students in the bird park who wear spectacles
=
1425 x 100%
= 56%
Answer(s): 56%