Fill in the blanks.
Each boy has 2 stickers.
Each girl has 3 stickers.
The ratio of the number of boys to the number of girls is 9 : 11.
- Difference in the number of girls and boys = _____ u
- Total number of boys and girls = _____ u
- Difference in the number of stickers that the boys and the girls have = _____ u
- Total number of stickers that the boys and girls have = _____ u
|
Boys |
Girls |
Number of children |
9 u |
11 u |
Number of stickers for each child |
2 |
3 |
Total number of stickers |
9 u x 2 = 18 u |
11 u x 3 = 33 u |
(a)
Change ratio into units.
Number of boys = 9 u
Number of girls = 11 u
Difference between the number of girls and boys
= 11 u - 9 u
= 2 u
(b)
Total number of boys and girls
= 9 u + 11 u
= 20 u
(c)
Total number of stickers that the boys have
= 9 u x 2
= 18 u
Total number of stickers that the girls have
= 11 u x 3
= 33 u
Difference in the number of stickers that the boys and the girls have
= 33 u - 18 u
= 15 u
(d)
Total number of stickers that the boys and girls
= 18 u + 33 u
= 51 u
Answer(s): (a) 2; (b) 20; (c) 15; (d) 51