Fill in the blanks in whole numbers or fractions.
The ratio of adults to children is 5 : 6.
The ratio of girls to boys is 2 : 3.
The number of men to women is 2 : 5.
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 |
5 u |
6 u |
Men |
Women |
Girls |
Boys |
2 |
5 |
2 |
3 |
|
57 x 5 u = 347 u |
25 x 6 u = 225 u |
|
(a)
Change ratio into units.
Girls : Boys : Children
2 : 3 : 2 + 3
2 : 3 : 5
Number of adults = 5 u
(b)
Number of children = 6 u
Fraction of the children that were girls =
25 Number of girls
=
25 x 6 u
= 2
25 u
(c)
Number of adults = 5 u
Fraction of the adults that were women =
57 Number of women
=
57 x 5 u
= 3
47 u
(d)
Total number of people
= 5 u + 6 u
= 11 u
Answer(s): (a) 5; (b) 2
25; (c) 3
47; (d) 11