There are some students in the bird park.
35 of them are girls, of whom 70% of them do not wear hats.
12 of the boys do not wear hats. What is the percentage of the students in the bird park who do not wear hats?
Girls |
Boys |
Total |
3x10 = 30 u |
2x10 = 20 u |
5x10 = 50 u |
No hats |
Hats |
No hats |
Hats |
|
7x3 |
3x3 |
1x10 |
1x10 |
|
21 u |
9 u |
10 u |
10 u |
50 u |
70% =
70100=
710 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 do not wear hats
= 21 u + 10 u
= 31 u
Total number of students
= 21 u + 9 u + 10 u + 10 u
= 50 u
Percentage of the students in the bird park who do not wear hats
=
3150 x 100%
= 62%
Answer(s): 62%