There are some students in the stadium.
110 of them are girls, of whom 80% of them do not wear scarves.
49 of the boys do not wear scarves. What is the percentage of the students in the stadium who do not wear scarves?
Girls |
Boys |
Total |
1x5 = 5 u |
9x5 = 45 u |
10x5 = 50 u |
No scarves |
Scarves |
No scarves |
Scarves |
|
4x1 |
1x1 |
4x5 |
5x5 |
|
4 u |
1 u |
20 u |
25 u |
50 u |
80% =
80100=
45 The number of girls is the repeated identity. Make the number of girls the same. LCM of 1 and 5 is 5.
Number of students who do not wear scarves
= 4 u + 20 u
= 24 u
Total number of students
= 4 u + 1 u + 20 u + 25 u
= 50 u
Percentage of the students in the stadium who do not wear scarves
=
2450 x 100%
= 48%
Answer(s): 48%