Fill in the blanks.
Each boy has 3 stickers.
Each girl has 4 stickers.
The ratio of the number of boys to the number of girls is 2 : 7.
- 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 |
2 u |
7 u |
Number of stickers for each child |
3 |
4 |
Total number of stickers |
2 u x 3 = 6 u |
7 u x 4 = 28 u |
(a)
Change ratio into units.
Number of boys = 2 u
Number of girls = 7 u
Difference between the number of girls and boys
= 7 u - 2 u
= 5 u
(b)
Total number of boys and girls
= 2 u + 7 u
= 9 u
(c)
Total number of stickers that the boys have
= 2 u x 3
= 6 u
Total number of stickers that the girls have
= 7 u x 4
= 28 u
Difference in the number of stickers that the boys and the girls have
= 28 u - 6 u
= 22 u
(d)
Total number of stickers that the boys and girls
= 6 u + 28 u
= 34 u
Answer(s): (a) 5; (b) 9; (c) 22; (d) 34