Fill in the blanks in whole numbers or fractions.
The ratio of adults to children is 6 : 5.
The ratio of girls to boys is 4 : 3.
The number of women to men is 3 : 2.
Let the number of children be 5 u.
- Number of adults = _____ u
- Number of girls = _____ u
- Number of men = _____ u
- Total number of people = _____ u
Adults |
Children |
6 u |
5 u |
Women |
Men |
Girls |
Boys |
3 |
2 |
4 |
3 |
|
25 x 6 u = 225 u |
47 x 5 u = 267 u |
|
(a)
Change ratio into units.
Girls : Boys : Children
4 : 3 : 4 + 3
4 : 3 : 7
Number of adults = 6 u
(b)
Number of children = 5 u
Fraction of the children that were girls =
47 Number of girls
=
47 x 5 u
= 2
67 u
(c)
Number of adults = 6 u
Fraction of the adults that were men =
25 Number of men
=
25 x 6 u
= 2
25 u
(d)
Total number of people
= 6 u + 5 u
= 11 u
Answer(s): (a) 6; (b) 2
67; (c) 2
25; (d) 11