There are some students in the bird park.
310 of them are boys, of whom 50% of them do not wear caps.
27 of the girls do not wear caps. What is the percentage of the students in the bird park who do not wear caps?
Boys |
Girls |
Total |
3x2 = 6 u |
7x2 = 14 u |
10x2 = 20 u |
No caps |
Caps |
No caps |
Caps |
|
1x3 |
1x3 |
2x2 |
5x2 |
|
3 u |
3 u |
4 u |
10 u |
20 u |
50% =
50100=
12 The number of boys is the repeated identity. Make the number of boys the same. LCM of 3 and 2 is 6.
Number of students who do not wear caps
= 3 u + 4 u
= 7 u
Total number of students
= 3 u + 3 u + 4 u + 10 u
= 20 u
Percentage of the students in the bird park who do not wear caps
=
720 x 100%
= 35%
Answer(s): 35%