Fill in the blanks.
The ratio of children to adults is 1 : 2.
The ratio of men to women is 8 : 11.
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 |
1x19 = 19 u |
2x19 = 38 u |
|
Men |
Women |
19 |
8x2 |
11x2 |
19 u |
16 u |
22 u |
(a)
Change ratio into units.
Men : Women : Children
8 : 11 : 8 + 11
8 : 11 : 19
The number of adults is the repeated identity.
LCM of 2 and 19 is 38.
Number of children = 19 u
(b)
Number of men = 16 u
(c)
Difference in the number of women and men
= 22 u - 16 u
= 6 u
(d)
Total number of people
= 19 u + 38 u
= 57 u
Answer(s): (a) 19; (b) 16; (c) 6; (d) 57