Fill in the blanks.
The ratio of children to adults is 8 : 3.
The ratio of women to men is 5 : 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 |
8x14 = 112 u |
3x14 = 42 u |
|
Women |
Men |
14 |
5x3 |
9x3 |
112 u |
15 u |
27 u |
(a)
Change ratio into units.
Women : Men : Children
5 : 9 : 5 + 9
5 : 9 : 14
The number of adults is the repeated identity.
LCM of 3 and 14 is 42.
Number of children = 112 u
(b)
Number of women = 15 u
(c)
Difference in the number of men and women
= 27 u - 15 u
= 12 u
(d)
Total number of people
= 112 u + 42 u
= 154 u
Answer(s): (a) 112; (b) 15; (c) 12; (d) 154