Fill in the blanks in whole numbers or fractions.
The ratio of adults to children is 5 : 6.
The ratio of boys to girls is 5 : 2.
The number of men to women is 2 : 1.
Let the number of children be 6 u.
- Number of adults = _____ u
- Number of boys = _____ u
- Number of women = _____ u
- Total number of people = _____ u
Adults |
Children |
5 u |
6 u |
Men |
Women |
Boys |
Girls |
2 |
1 |
5 |
2 |
|
13 x 5 u = 123 u |
57 x 6 u = 427 u |
|
(a)
Change ratio into units.
Boys : Girls : Children
5 : 2 : 5 + 2
5 : 2 : 7
Number of adults = 5 u
(b)
Number of children = 6 u
Fraction of the children that were boys =
57 Number of boys
=
57 x 6 u
= 4
27 u
(c)
Number of adults = 5 u
Fraction of the adults that were women =
13 Number of women
=
13 x 5 u
= 1
23 u
(d)
Total number of people
= 5 u + 6 u
= 11 u
Answer(s): (a) 5; (b) 4
27; (c) 1
23; (d) 11