Fill in the blanks.
Each girl has 2 stickers.
Each boy has 9 stickers.
The ratio of the number of girls to the number of boys is 1 : 9.
- 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 |
9 u |
Number of stickers for each child |
2 |
9 |
Total number of stickers |
1 u x 2 = 2 u |
9 u x 9 = 81 u |
(a)
Change ratio into units.
Number of girls = 1 u
Number of boys = 9 u
Difference between the number of boys and girls
= 9 u - 1 u
= 8 u
(b)
Total number of girls and boys
= 1 u + 9 u
= 10 u
(c)
Total number of stickers that the girls have
= 1 u x 2
= 2 u
Total number of stickers that the boys have
= 9 u x 9
= 81 u
Difference in the number of stickers that the girls and the boys have
= 81 u - 2 u
= 79 u
(d)
Total number of stickers that the girls and boys
= 2 u + 81 u
= 83 u
Answer(s): (a) 8; (b) 10; (c) 79; (d) 83