There are some students in the theme park.
110 of them are boys, of whom 10% of them do not wear spectacles.
49 of the girls do not wear spectacles. What is the percentage of the students in the theme park who do not wear spectacles?
| Boys |
Girls |
Total |
1x10 =
10 u |
9x10 =
90 u |
10x10 =
100 u |
| No spectacles |
Spectacles |
No spectacles |
Spectacles |
|
| 1x1 |
9x1 |
4x10 |
5x10 |
|
| 1 u |
9 u |
40 u |
50 u |
100 u |
10% =
10100=
110 The number of boys is the repeated identity. Make the number of boys the same. LCM of 1 and 10 is 10.
Number of students who do not wear spectacles
= 1 u + 40 u
= 41 u
Total number of students
= 1 u + 9 u + 40 u + 50 u
= 100 u
Percentage of the students in the theme park who do not wear spectacles
=
41100 x 100%
= 41%
Answer(s): 41%
