Fill in the blanks.
The ratio of children to adults is 9 : 8.
The ratio of women to men is 2 : 5.
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 |
9x7 = 63 u |
8x7 = 56 u |
|
Women |
Men |
7 |
2x8 |
5x8 |
63 u |
16 u |
40 u |
(a)
Change ratio into units.
Women : Men : Children
2 : 5 : 2 + 5
2 : 5 : 7
The number of adults is the repeated identity.
LCM of 8 and 7 is 56.
Number of children = 63 u
(b)
Number of women = 16 u
(c)
Difference in the number of men and women
= 40 u - 16 u
= 24 u
(d)
Total number of people
= 63 u + 56 u
= 119 u
Answer(s): (a) 63; (b) 16; (c) 24; (d) 119