Fill in the blanks.
The ratio of children to adults is 1 : 6.
The ratio of men to women is 1 : 3.
Use LCM and find the following.
- Number of children = _____ u
- Number of men = _____ u
- Difference in the number of women and men = _____ u
- Total number of people = _____ u
Children |
Adults |
1x2 = 2 u |
6x2 = 12 u |
|
Men |
Women |
4 |
1x3 |
3x3 |
2 u |
3 u |
9 u |
(a)
Change ratio into units.
Men : Women : Children
1 : 3 : 1 + 3
1 : 3 : 4
The number of adults is the repeated identity.
LCM of 6 and 4 is 12.
Number of children = 2 u
(b)
Number of men = 3 u
(c)
Difference in the number of women and men
= 9 u - 3 u
= 6 u
(d)
Total number of people
= 2 u + 12 u
= 14 u
Answer(s): (a) 2; (b) 3; (c) 6; (d) 14