There are some pupils in the theme park.
14 of them are boys, of whom 80% 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 |
1x5 = 5 u |
3x5 = 15 u |
4x5 = 20 u |
No scarves |
Scarves |
No scarves |
Scarves |
|
4x1 |
1x1 |
1x5 |
2x5 |
|
4 u |
1 u |
5 u |
10 u |
20 u |
80% =
80100=
45 The number of boys is the repeated identity. Make the number of boys the same. LCM of 1 and 5 is 5.
Number of pupils who wear scarves
= 1 u + 10 u
= 11 u
Total number of pupils
= 4 u + 1 u + 5 u + 10 u
= 20 u
Percentage of the pupils in the theme park who wear scarves
=
1120 x 100%
= 55%
Answer(s): 55%