Fill in the blanks.
Each girl has 3 stickers.
Each boy has 7 stickers.
The ratio of the number of girls to the number of boys is 3 : 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 |
3 u |
7 u |
Number of stickers for each child |
3 |
7 |
Total number of stickers |
3 u x 3 = 9 u |
7 u x 7 = 49 u |
(a)
Change ratio into units.
Number of girls = 3 u
Number of boys = 7 u
Difference between the number of boys and girls
= 7 u - 3 u
= 4 u
(b)
Total number of girls and boys
= 3 u + 7 u
= 10 u
(c)
Total number of stickers that the girls have
= 3 u x 3
= 9 u
Total number of stickers that the boys have
= 7 u x 7
= 49 u
Difference in the number of stickers that the girls and the boys have
= 49 u - 9 u
= 40 u
(d)
Total number of stickers that the girls and boys
= 9 u + 49 u
= 58 u
Answer(s): (a) 4; (b) 10; (c) 40; (d) 58