Fill in the blanks in whole numbers or fractions.
The ratio of adults to children is 5 : 8.
The ratio of boys to girls is 6 : 1.
The number of women to men is 1 : 3.
Let the number of children be 8 u.
- Number of adults = _____ u
- Number of boys = _____ u
- Number of men = _____ u
- Total number of people = _____ u
Adults |
Children |
5 u |
8 u |
Women |
Men |
Boys |
Girls |
1 |
3 |
6 |
1 |
|
34 x 5 u = 334 u |
67 x 8 u = 667 u |
|
(a)
Change ratio into units.
Boys : Girls : Children
6 : 1 : 6 + 1
6 : 1 : 7
Number of adults = 5 u
(b)
Number of children = 8 u
Fraction of the children that were boys =
67 Number of boys
=
67 x 8 u
= 6
67 u
(c)
Number of adults = 5 u
Fraction of the adults that were men =
34 Number of men
=
34 x 5 u
= 3
34 u
(d)
Total number of people
= 5 u + 8 u
= 13 u
Answer(s): (a) 5; (b) 6
67; (c) 3
34; (d) 13