There are some students in the fun fair.
710 of them are boys, of whom 40% of them do not wear spectacles.
13 of the girls do not wear spectacles. What is the percentage of the students in the fun fair who wear spectacles?
| Boys |
Girls |
Total |
7x5 =
35 u |
3x5 =
15 u |
10x5 =
50 u |
| No spectacles |
Spectacles |
No spectacles |
Spectacles |
|
| 2x7 |
3x7 |
1x5 |
2x5 |
|
| 14 u |
21 u |
5 u |
10 u |
50 u |
40% =
40100=
25 The number of boys is the repeated identity. Make the number of boys the same. LCM of 7 and 5 is 35.
Number of students who wear spectacles
= 21 u + 10 u
= 31 u
Total number of students
= 14 u + 21 u + 5 u + 10 u
= 50 u
Percentage of the students in the fun fair who wear spectacles
=
3150 x 100%
= 62%
Answer(s): 62%
