Fill in the blanks.
The ratio of children to adults is 1 : 8.
The ratio of men to women is 1 : 12.
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 |
1x13 = 13 u |
8x13 = 104 u |
|
Men |
Women |
13 |
1x8 |
12x8 |
13 u |
8 u |
96 u |
(a)
Change ratio into units.
Men : Women : Children
1 : 12 : 1 + 12
1 : 12 : 13
The number of adults is the repeated identity.
LCM of 8 and 13 is 104.
Number of children = 13 u
(b)
Number of men = 8 u
(c)
Difference in the number of women and men
= 96 u - 8 u
= 88 u
(d)
Total number of people
= 13 u + 104 u
= 117 u
Answer(s): (a) 13; (b) 8; (c) 88; (d) 117