Fill in the blanks.
The ratio of children to adults is 3 : 5.
The ratio of women to men is 4 : 11.
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 |
3x3 = 9 u |
5x3 = 15 u |
|
Women |
Men |
15 |
4x1 |
11x1 |
9 u |
4 u |
11 u |
(a)
Change ratio into units.
Women : Men : Children
4 : 11 : 4 + 11
4 : 11 : 15
The number of adults is the repeated identity.
LCM of 5 and 15 is 15.
Number of children = 9 u
(b)
Number of women = 4 u
(c)
Difference in the number of men and women
= 11 u - 4 u
= 7 u
(d)
Total number of people
= 9 u + 15 u
= 24 u
Answer(s): (a) 9; (b) 4; (c) 7; (d) 24