Fill in the blanks in whole numbers or fractions.
The ratio of adults to children is 7 : 6.
The ratio of girls to boys is 3 : 2.
The number of men to women is 6 : 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 |
7 u |
6 u |
Men |
Women |
Girls |
Boys |
6 |
1 |
3 |
2 |
|
17 x 7 u = 1 u |
35 x 6 u = 335 u |
|
(a)
Change ratio into units.
Girls : Boys : Children
3 : 2 : 3 + 2
3 : 2 : 5
Number of adults = 7 u
(b)
Number of children = 6 u
Fraction of the children that were girls =
35 Number of girls
=
35 x 6 u
= 3
35 u
(c)
Number of adults = 7 u
Fraction of the adults that were women =
17 Number of women
=
17 x 7 u
= 1 u
(d)
Total number of people
= 7 u + 6 u
= 13 u
Answer(s): (a) 7; (b) 3
35; (c) 1; (d) 13