Fill in the blanks.
The ratio of children to adults is 1 : 6.
The ratio of women to men is 2 : 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 |
1x13 = 13 u |
6x13 = 78 u |
|
Women |
Men |
13 |
2x6 |
11x6 |
13 u |
12 u |
66 u |
(a)
Change ratio into units.
Women : Men : Children
2 : 11 : 2 + 11
2 : 11 : 13
The number of adults is the repeated identity.
LCM of 6 and 13 is 78.
Number of children = 13 u
(b)
Number of women = 12 u
(c)
Difference in the number of men and women
= 66 u - 12 u
= 54 u
(d)
Total number of people
= 13 u + 78 u
= 91 u
Answer(s): (a) 13; (b) 12; (c) 54; (d) 91