Fill in the blanks.
The ratio of children to adults is 3 : 10.
The ratio of women to men is 1 : 4.
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 |
3x1 = 3 u |
10x1 = 10 u |
|
Women |
Men |
5 |
1x2 |
4x2 |
3 u |
2 u |
8 u |
(a)
Change ratio into units.
Women : Men : Children
1 : 4 : 1 + 4
1 : 4 : 5
The number of adults is the repeated identity.
LCM of 10 and 5 is 10.
Number of children = 3 u
(b)
Number of women = 2 u
(c)
Difference in the number of men and women
= 8 u - 2 u
= 6 u
(d)
Total number of people
= 3 u + 10 u
= 13 u
Answer(s): (a) 3; (b) 2; (c) 6; (d) 13