Fill in the blanks.
The ratio of children to adults is 2 : 5.
The ratio of women to men is 1 : 9.
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 |
2x2 = 4 u |
5x2 = 10 u |
|
Women |
Men |
10 |
1x1 |
9x1 |
4 u |
1 u |
9 u |
(a)
Change ratio into units.
Women : Men : Children
1 : 9 : 1 + 9
1 : 9 : 10
The number of adults is the repeated identity.
LCM of 5 and 10 is 10.
Number of children = 4 u
(b)
Number of women = 1 u
(c)
Difference in the number of men and women
= 9 u - 1 u
= 8 u
(d)
Total number of people
= 4 u + 10 u
= 14 u
Answer(s): (a) 4; (b) 1; (c) 8; (d) 14