Fill in the blanks.
The number of adults is twice the number of children.
The number of boys is 3 times as many as the number of girls.
- Number of boys = _____ u
- Number of adults = _____ u
- Total number of people = _____ u
Adults |
Children |
2x4 |
1x4 |
|
Boys |
Girls |
|
3 |
1 |
8 u |
3 u |
1 u |
(a)
Change X times into units.
The number of boys is 3 times as many as the number of girls.
Number of girls = 1 u
Number of boys
= 3 x 1 u
= 3 u
Number of children
= 1 u + 3 u
= 4 u
(b)
The number of adults is twice the number of children.
Number of adults
= 2 x 4 u
= 8 u
(c)
Total number of people
= 4 u + 8 u
= 12 u
Answer(s): (a) 3; (b) 8; (c) 12