There are some pupils in the theme park.
25 of them are boys, of whom 40% of them do not wear scarves.
13 of the girls do not wear scarves. What is the percentage of the pupils in the theme park who wear scarves?
Boys |
Girls |
Total |
2x5 = 10 u |
3x5 = 15 u |
5x5 = 25 u |
No scarves |
Scarves |
No scarves |
Scarves |
|
2x2 |
3x2 |
1x5 |
2x5 |
|
4 u |
6 u |
5 u |
10 u |
25 u |
40% =
40100=
25 The number of boys is the repeated identity. Make the number of boys the same. LCM of 2 and 5 is 10.
Number of pupils who wear scarves
= 6 u + 10 u
= 16 u
Total number of pupils
= 4 u + 6 u + 5 u + 10 u
= 25 u
Percentage of the pupils in the theme park who wear scarves
=
1625 x 100%
= 64%
Answer(s): 64%