Fill in the blanks.
The ratio of children to adults is 1 : 1.
The ratio of women to men is 9 : 10.
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 |
1x19 = 19 u |
1x19 = 19 u |
|
Women |
Men |
19 |
9x1 |
10x1 |
19 u |
9 u |
10 u |
(a)
Change ratio into units.
Women : Men : Children
9 : 10 : 9 + 10
9 : 10 : 19
The number of adults is the repeated identity.
LCM of 1 and 19 is 19.
Number of children = 19 u
(b)
Number of women = 9 u
(c)
Difference in the number of men and women
= 10 u - 9 u
= 1 u
(d)
Total number of people
= 19 u + 19 u
= 38 u
Answer(s): (a) 19; (b) 9; (c) 1; (d) 38