Fill in the blanks.
The ratio of children to adults is 6 : 5.
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 |
6x4 = 24 u |
5x4 = 20 u |
|
Men |
Women |
4 |
1x5 |
3x5 |
24 u |
5 u |
15 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 5 and 4 is 20.
Number of children = 24 u
(b)
Number of men = 5 u
(c)
Difference in the number of women and men
= 15 u - 5 u
= 10 u
(d)
Total number of people
= 24 u + 20 u
= 44 u
Answer(s): (a) 24; (b) 5; (c) 10; (d) 44