Fill in the blanks.
The ratio of children to adults is 1 : 2.
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 |
1x17 = 17 u |
2x17 = 34 u |
|
Men |
Women |
17 |
8x2 |
9x2 |
17 u |
16 u |
18 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 2 and 17 is 34.
Number of children = 17 u
(b)
Number of men = 16 u
(c)
Difference in the number of women and men
= 18 u - 16 u
= 2 u
(d)
Total number of people
= 17 u + 34 u
= 51 u
Answer(s): (a) 17; (b) 16; (c) 2; (d) 51