Fill in the blanks.
The ratio of children to adults is 2 : 3.
The ratio of men to women is 8 : 9.
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 |
2x17 = 34 u |
3x17 = 51 u |
|
Men |
Women |
17 |
8x3 |
9x3 |
34 u |
24 u |
27 u |
(a)
Change ratio into units.
Men : Women : Children
8 : 9 : 8 + 9
8 : 9 : 17
The number of adults is the repeated identity.
LCM of 3 and 17 is 51.
Number of children = 34 u
(b)
Number of men = 24 u
(c)
Difference in the number of women and men
= 27 u - 24 u
= 3 u
(d)
Total number of people
= 34 u + 51 u
= 85 u
Answer(s): (a) 34; (b) 24; (c) 3; (d) 85