Fill in the blanks in whole numbers or fractions.
The ratio of adults to children is 1 : 6.
The ratio of girls to boys is 5 : 1.
The number of men to women is 5 : 1.
Let the number of children be 6 u.
- Number of adults = _____ u
- Number of girls = _____ u
- Number of women = _____ u
- Total number of people = _____ u
Adults |
Children |
1 u |
6 u |
Men |
Women |
Girls |
Boys |
5 |
1 |
5 |
1 |
|
16 x 1 u = 16 u |
56 x 6 u = 5 u |
|
(a)
Change ratio into units.
Girls : Boys : Children
5 : 1 : 5 + 1
5 : 1 : 6
Number of adults = 1 u
(b)
Number of children = 6 u
Fraction of the children that were girls =
56 Number of girls
=
56 x 6 u
= 5 u
(c)
Number of adults = 1 u
Fraction of the adults that were women =
16 Number of women
=
16 x 1 u
=
16 u
(d)
Total number of people
= 1 u + 6 u
= 7 u
Answer(s): (a) 1; (b) 5; (c)
16; (d) 7