Fill in the blanks.
The ratio of children to adults is 1 : 2.
The ratio of women to men is 3 : 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 |
1x7 = 7 u |
2x7 = 14 u |
|
Women |
Men |
7 |
3x2 |
4x2 |
7 u |
6 u |
8 u |
(a)
Change ratio into units.
Women : Men : Children
3 : 4 : 3 + 4
3 : 4 : 7
The number of adults is the repeated identity.
LCM of 2 and 7 is 14.
Number of children = 7 u
(b)
Number of women = 6 u
(c)
Difference in the number of men and women
= 8 u - 6 u
= 2 u
(d)
Total number of people
= 7 u + 14 u
= 21 u
Answer(s): (a) 7; (b) 6; (c) 2; (d) 21