There are some pupils in the bird park.
110 of them are girls, of whom 20% of them do not wear hats.
59 of the boys do not wear hats. What is the percentage of the pupils in the bird park who wear hats?
Girls |
Boys |
Total |
1x5 = 5 u |
9x5 = 45 u |
10x5 = 50 u |
No hats |
Hats |
No hats |
Hats |
|
1x1 |
4x1 |
5x5 |
4x5 |
|
1 u |
4 u |
25 u |
20 u |
50 u |
20% =
20100=
15 The number of girls is the repeated identity. Make the number of girls the same. LCM of 1 and 5 is 5.
Number of pupils who wear hats
= 4 u + 20 u
= 24 u
Total number of pupils
= 1 u + 4 u + 25 u + 20 u
= 50 u
Percentage of the pupils in the bird park who wear hats
=
2450 x 100%
= 48%
Answer(s): 48%