Fill in the blanks.
Each girl has 8 stickers.
Each boy has 9 stickers.
The ratio of the number of girls to the number of boys is 4 : 7.
- 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 |
4 u |
7 u |
Number of stickers for each child |
8 |
9 |
Total number of stickers |
4 u x 8 = 32 u |
7 u x 9 = 63 u |
(a)
Change ratio into units.
Number of girls = 4 u
Number of boys = 7 u
Difference between the number of boys and girls
= 7 u - 4 u
= 3 u
(b)
Total number of girls and boys
= 4 u + 7 u
= 11 u
(c)
Total number of stickers that the girls have
= 4 u x 8
= 32 u
Total number of stickers that the boys have
= 7 u x 9
= 63 u
Difference in the number of stickers that the girls and the boys have
= 63 u - 32 u
= 31 u
(d)
Total number of stickers that the girls and boys
= 32 u + 63 u
= 95 u
Answer(s): (a) 3; (b) 11; (c) 31; (d) 95