There are some students in the theme park.
310 of them are girls, of whom 10% of them do not wear spectacles.
67 of the boys do not wear spectacles. What is the percentage of the students in the theme park who wear spectacles?
Girls |
Boys |
Total |
3x10 = 30 u |
7x10 = 70 u |
10x10 = 100 u |
No spectacles |
Spectacles |
No spectacles |
Spectacles |
|
1x3 |
9x3 |
6x10 |
1x10 |
|
3 u |
27 u |
60 u |
10 u |
100 u |
10% =
10100=
110 The number of girls is the repeated identity. Make the number of girls the same. LCM of 3 and 10 is 30.
Number of students who wear spectacles
= 27 u + 10 u
= 37 u
Total number of students
= 3 u + 27 u + 60 u + 10 u
= 100 u
Percentage of the students in the theme park who wear spectacles
=
37100 x 100%
= 37%
Answer(s): 37%