There are some pupils in the zoo.
14 of them are girls, of whom 60% of them do not wear spectacles.
23 of the boys do not wear spectacles. What is the percentage of the pupils in the zoo who do not wear spectacles?
| Girls |
Boys |
Total |
1x5 =
5 u |
3x5 =
15 u |
4x5 =
20 u |
| No spectacles |
Spectacles |
No spectacles |
Spectacles |
|
| 3x1 |
2x1 |
2x5 |
1x5 |
|
| 3 u |
2 u |
10 u |
5 u |
20 u |
60% =
60100=
35 The number of girls is the repeated identity. Make the number of girls the same. LCM of 1 and 5 is 5.
Number of pupils who do not wear spectacles
= 3 u + 10 u
= 13 u
Total number of pupils
= 3 u + 2 u + 10 u + 5 u
= 20 u
Percentage of the pupils in the zoo who do not wear spectacles
=
1320 x 100%
= 65%
Answer(s): 65%
