In a school, there is a total of 270 people.
40% are children.
The rest are adults.
The number of women and men is in the ratio of 1 : 2.
- What percentage of the people are women?
- How many men are there?
Children |
Adults |
Total |
2 u |
3 u |
5 u |
|
Women |
Men |
|
2 u |
1 u |
2 u |
5 u |
(a)
40% =
40100 =
25 The number of adults is the combined repeated identity.
Children : Adults
2 : 5 - 2
2 : 3
Percentage of the people that are women
=
15 x 100%
= 20%
(b)
Total number of people = 5 u
5 u = 270
1 u = 270 ÷ 5 = 54
Number of men
= 2 u
= 2 x 54
= 108
Answer(s): (a) 20%; (b) 108