Fill in the blanks.
Each girl has 3 stickers.
Each boy has 5 stickers.
The ratio of the number of girls to the number of boys is 1 : 3.
- Difference in the number of boys and girls = _____ u
- Total number of girls and boys = _____ u
- Difference in the number of stickers that the girls and the boys have = _____ u
- Total number of stickers that the girls and boys have = _____ u
|
Girls |
Boys |
Number of children |
1 u |
3 u |
Number of stickers for each child |
3 |
5 |
Total number of stickers |
1 u x 3 = 3 u |
3 u x 5 = 15 u |
(a)
Change ratio into units.
Number of girls = 1 u
Number of boys = 3 u
Difference between the number of boys and girls
= 3 u - 1 u
= 2 u
(b)
Total number of girls and boys
= 1 u + 3 u
= 4 u
(c)
Total number of stickers that the girls have
= 1 u x 3
= 3 u
Total number of stickers that the boys have
= 3 u x 5
= 15 u
Difference in the number of stickers that the girls and the boys have
= 15 u - 3 u
= 12 u
(d)
Total number of stickers that the girls and boys
= 3 u + 15 u
= 18 u
Answer(s): (a) 2; (b) 4; (c) 12; (d) 18