There are some students in the stadium.
35 of them are girls, of whom 75% of them do not wear caps.
12 of the boys do not wear caps. What is the percentage of the students in the stadium who do not wear caps?
Girls |
Boys |
Total |
3x4 = 12 u |
2x4 = 8 u |
5x4 = 20 u |
No caps |
Caps |
No caps |
Caps |
|
3x3 |
1x3 |
1x4 |
1x4 |
|
9 u |
3 u |
4 u |
4 u |
20 u |
75% =
75100=
34 The number of girls is the repeated identity. Make the number of girls the same. LCM of 3 and 4 is 12.
Number of students who do not wear caps
= 9 u + 4 u
= 13 u
Total number of students
= 9 u + 3 u + 4 u + 4 u
= 20 u
Percentage of the students in the stadium who do not wear caps
=
1320 x 100%
= 65%
Answer(s): 65%