Fill in the blanks.
The ratio of children to adults is 7 : 11.
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 |
7x7 = 49 u |
11x7 = 77 u |
|
Women |
Men |
7 |
1x11 |
6x11 |
49 u |
11 u |
66 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 11 and 7 is 77.
Number of children = 49 u
(b)
Number of women = 11 u
(c)
Difference in the number of men and women
= 66 u - 11 u
= 55 u
(d)
Total number of people
= 49 u + 77 u
= 126 u
Answer(s): (a) 49; (b) 11; (c) 55; (d) 126