Fill in the blanks.
The ratio of children to adults is 1 : 10.
The ratio of women to men is 1 : 6.
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 |
1x7 = 7 u |
10x7 = 70 u |
|
Women |
Men |
7 |
1x10 |
6x10 |
7 u |
10 u |
60 u |
(a)
Change ratio into units.
Women : Men : Children
1 : 6 : 1 + 6
1 : 6 : 7
The number of adults is the repeated identity.
LCM of 10 and 7 is 70.
Number of children = 7 u
(b)
Number of women = 10 u
(c)
Difference in the number of men and women
= 60 u - 10 u
= 50 u
(d)
Total number of people
= 7 u + 70 u
= 77 u
Answer(s): (a) 7; (b) 10; (c) 50; (d) 77