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