Fill in the blanks.
The ratio of children to adults is 1 : 11.
The ratio of men to women is 1 : 7.
Use LCM and find the following.
- Number of children = _____ u
- Number of men = _____ u
- Difference in the number of women and men = _____ u
- Total number of people = _____ u
Children |
Adults |
1x8 = 8 u |
11x8 = 88 u |
|
Men |
Women |
8 |
1x11 |
7x11 |
8 u |
11 u |
77 u |
(a)
Change ratio into units.
Men : Women : Children
1 : 7 : 1 + 7
1 : 7 : 8
The number of adults is the repeated identity.
LCM of 11 and 8 is 88.
Number of children = 8 u
(b)
Number of men = 11 u
(c)
Difference in the number of women and men
= 77 u - 11 u
= 66 u
(d)
Total number of people
= 8 u + 88 u
= 96 u
Answer(s): (a) 8; (b) 11; (c) 66; (d) 96