Fill in the blanks in whole numbers or fractions.
The ratio of adults to children is 8 : 5.
The ratio of girls to boys is 1 : 6.
The number of women to men is 6 : 5.
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 |
8 u |
5 u |
Women |
Men |
Girls |
Boys |
6 |
5 |
1 |
6 |
|
511 x 8 u = 3711 u |
17 x 5 u = 57 u |
|
(a)
Change ratio into units.
Girls : Boys : Children
1 : 6 : 1 + 6
1 : 6 : 7
Number of adults = 8 u
(b)
Number of children = 5 u
Fraction of the children that were girls =
17 Number of girls
=
17 x 5 u
=
57 u
(c)
Number of adults = 8 u
Fraction of the adults that were men =
511 Number of men
=
511 x 8 u
= 3
711 u
(d)
Total number of people
= 8 u + 5 u
= 13 u
Answer(s): (a) 8; (b)
57; (c) 3
711; (d) 13