Fill in the blanks.
The ratio of children to adults is 2 : 1.
The ratio of women to men is 1 : 3.
Use LCM and find the following.
- Number of children = _____ u
- Number of women = _____ u
- Difference in the number of men and women = _____ u
- Total number of people = _____ u
Children |
Adults |
2x4 = 8 u |
1x4 = 4 u |
|
Women |
Men |
4 |
1x1 |
3x1 |
8 u |
1 u |
3 u |
(a)
Change ratio into units.
Women : Men : Children
1 : 3 : 1 + 3
1 : 3 : 4
The number of adults is the repeated identity.
LCM of 1 and 4 is 4.
Number of children = 8 u
(b)
Number of women = 1 u
(c)
Difference in the number of men and women
= 3 u - 1 u
= 2 u
(d)
Total number of people
= 8 u + 4 u
= 12 u
Answer(s): (a) 8; (b) 1; (c) 2; (d) 12