Fill in the blanks.
The ratio of children to adults is 3 : 8.
The ratio of women to men is 6 : 7.
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 |
3x13 = 39 u |
8x13 = 104 u |
|
Women |
Men |
13 |
6x8 |
7x8 |
39 u |
48 u |
56 u |
(a)
Change ratio into units.
Women : Men : Children
6 : 7 : 6 + 7
6 : 7 : 13
The number of adults is the repeated identity.
LCM of 8 and 13 is 104.
Number of children = 39 u
(b)
Number of women = 48 u
(c)
Difference in the number of men and women
= 56 u - 48 u
= 8 u
(d)
Total number of people
= 39 u + 104 u
= 143 u
Answer(s): (a) 39; (b) 48; (c) 8; (d) 143