Fill in the blanks.
The ratio of children to adults is 6 : 11.
The ratio of women to men is 4 : 11.
Use LCM and find the following.
- Number of children = _____ u
- Number of women = _____ u
- Difference in the number of men and women = _____ u
- Total number of people = _____ u
Children |
Adults |
6x15 = 90 u |
11x15 = 165 u |
|
Women |
Men |
15 |
4x11 |
11x11 |
90 u |
44 u |
121 u |
(a)
Change ratio into units.
Women : Men : Children
4 : 11 : 4 + 11
4 : 11 : 15
The number of adults is the repeated identity.
LCM of 11 and 15 is 165.
Number of children = 90 u
(b)
Number of women = 44 u
(c)
Difference in the number of men and women
= 121 u - 44 u
= 77 u
(d)
Total number of people
= 90 u + 165 u
= 255 u
Answer(s): (a) 90; (b) 44; (c) 77; (d) 255