Fill in the blanks.
The ratio of children to adults is 1 : 6.
The ratio of men to women is 7 : 8.
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 |
1x5 = 5 u |
6x5 = 30 u |
|
Men |
Women |
15 |
7x2 |
8x2 |
5 u |
14 u |
16 u |
(a)
Change ratio into units.
Men : Women : Children
7 : 8 : 7 + 8
7 : 8 : 15
The number of adults is the repeated identity.
LCM of 6 and 15 is 30.
Number of children = 5 u
(b)
Number of men = 14 u
(c)
Difference in the number of women and men
= 16 u - 14 u
= 2 u
(d)
Total number of people
= 5 u + 30 u
= 35 u
Answer(s): (a) 5; (b) 14; (c) 2; (d) 35