Fill in the blanks.
The ratio of children to adults is 7 : 11.
The ratio of women to men is 8 : 9.
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 |
7x17 = 119 u |
11x17 = 187 u |
|
Women |
Men |
17 |
8x11 |
9x11 |
119 u |
88 u |
99 u |
(a)
Change ratio into units.
Women : Men : Children
8 : 9 : 8 + 9
8 : 9 : 17
The number of adults is the repeated identity.
LCM of 11 and 17 is 187.
Number of children = 119 u
(b)
Number of women = 88 u
(c)
Difference in the number of men and women
= 99 u - 88 u
= 11 u
(d)
Total number of people
= 119 u + 187 u
= 306 u
Answer(s): (a) 119; (b) 88; (c) 11; (d) 306