In a school, there is a total of 190 people.
30% are children.
The rest are adults.
The number of men and women is in the ratio of 2 : 5.
- What percentage of the people are men?
- How many women are there?
Children |
Adults |
Total |
3 u |
7 u |
10 u |
|
Men |
Women |
|
3 u |
2 u |
5 u |
10 u |
(a)
30% =
30100 =
310 The number of adults is the combined repeated identity.
Children : Adults
3 : 10 - 3
3 : 7
Percentage of the people that are men
=
210 x 100%
= 20%
(b)
Total number of people = 10 u
10 u = 190
1 u = 190 ÷ 10 = 19
Number of women
= 5 u
= 5 x 19
= 95
Answer(s): (a) 20%; (b) 95