Fill in the blanks.
The ratio of children to adults is 8 : 5.
The ratio of men to women is 1 : 6.
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 |
8x7 = 56 u |
5x7 = 35 u |
|
Men |
Women |
7 |
1x5 |
6x5 |
56 u |
5 u |
30 u |
(a)
Change ratio into units.
Men : Women : Children
1 : 6 : 1 + 6
1 : 6 : 7
The number of adults is the repeated identity.
LCM of 5 and 7 is 35.
Number of children = 56 u
(b)
Number of men = 5 u
(c)
Difference in the number of women and men
= 30 u - 5 u
= 25 u
(d)
Total number of people
= 56 u + 35 u
= 91 u
Answer(s): (a) 56; (b) 5; (c) 25; (d) 91