There are some students in the bird park.
25 of them are girls, of whom 70% of them do not wear scarves.
13 of the boys do not wear scarves. What is the percentage of the students in the bird park who wear scarves?
Girls |
Boys |
Total |
2x5 = 10 u |
3x5 = 15 u |
5x5 = 25 u |
No scarves |
Scarves |
No scarves |
Scarves |
|
7x1 |
3x1 |
1x5 |
2x5 |
|
7 u |
3 u |
5 u |
10 u |
25 u |
70% =
70100=
710 The number of girls is the repeated identity. Make the number of girls the same. LCM of 2 and 10 is 10.
Number of students who wear scarves
= 3 u + 10 u
= 13 u
Total number of students
= 7 u + 3 u + 5 u + 10 u
= 25 u
Percentage of the students in the bird park who wear scarves
=
1325 x 100%
= 52%
Answer(s): 52%