There are some pupils in the theme park.
310 of them are girls, of whom 50% of them do not wear hats.
37 of the boys do not wear hats. What is the percentage of the pupils in the theme park who wear hats?
Girls |
Boys |
Total |
3x2 = 6 u |
7x2 = 14 u |
10x2 = 20 u |
No hats |
Hats |
No hats |
Hats |
|
1x3 |
1x3 |
3x2 |
4x2 |
|
3 u |
3 u |
6 u |
8 u |
20 u |
50% =
50100=
12 The number of girls is the repeated identity. Make the number of girls the same. LCM of 3 and 2 is 6.
Number of pupils who wear hats
= 3 u + 8 u
= 11 u
Total number of pupils
= 3 u + 3 u + 6 u + 8 u
= 20 u
Percentage of the pupils in the theme park who wear hats
=
1120 x 100%
= 55%
Answer(s): 55%