Fill in the blanks.
The ratio of children to adults is 1 : 1.
The ratio of women to men is 2 : 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 |
1x11 = 11 u |
1x11 = 11 u |
|
Women |
Men |
11 |
2x1 |
9x1 |
11 u |
2 u |
9 u |
(a)
Change ratio into units.
Women : Men : Children
2 : 9 : 2 + 9
2 : 9 : 11
The number of adults is the repeated identity.
LCM of 1 and 11 is 11.
Number of children = 11 u
(b)
Number of women = 2 u
(c)
Difference in the number of men and women
= 9 u - 2 u
= 7 u
(d)
Total number of people
= 11 u + 11 u
= 22 u
Answer(s): (a) 11; (b) 2; (c) 7; (d) 22