Fill in the blanks.
The ratio of children to adults is 5 : 3.
The ratio of women to men is 2 : 5.
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 |
5x7 = 35 u |
3x7 = 21 u |
|
Women |
Men |
7 |
2x3 |
5x3 |
35 u |
6 u |
15 u |
(a)
Change ratio into units.
Women : Men : Children
2 : 5 : 2 + 5
2 : 5 : 7
The number of adults is the repeated identity.
LCM of 3 and 7 is 21.
Number of children = 35 u
(b)
Number of women = 6 u
(c)
Difference in the number of men and women
= 15 u - 6 u
= 9 u
(d)
Total number of people
= 35 u + 21 u
= 56 u
Answer(s): (a) 35; (b) 6; (c) 9; (d) 56