There are some students in the school hall.
110 of them are girls, of whom 60% of them do not wear hats.
29 of the boys do not wear hats. What is the percentage of the students in the school hall who do not wear hats?
Girls |
Boys |
Total |
1x5 = 5 u |
9x5 = 45 u |
10x5 = 50 u |
No hats |
Hats |
No hats |
Hats |
|
3x1 |
2x1 |
2x5 |
7x5 |
|
3 u |
2 u |
10 u |
35 u |
50 u |
60% =
60100=
35 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 hats
= 3 u + 10 u
= 13 u
Total number of students
= 3 u + 2 u + 10 u + 35 u
= 50 u
Percentage of the students in the school hall who do not wear hats
=
1350 x 100%
= 26%
Answer(s): 26%