Fill in the blanks.
Each boy has 1 stickers.
Each girl has 2 stickers.
The ratio of the number of boys to the number of girls is 7 : 9.
- 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 |
7 u |
9 u |
Number of stickers for each child |
1 |
2 |
Total number of stickers |
7 u x 1 = 7 u |
9 u x 2 = 18 u |
(a)
Change ratio into units.
Number of boys = 7 u
Number of girls = 9 u
Difference between the number of girls and boys
= 9 u - 7 u
= 2 u
(b)
Total number of boys and girls
= 7 u + 9 u
= 16 u
(c)
Total number of stickers that the boys have
= 7 u x 1
= 7 u
Total number of stickers that the girls have
= 9 u x 2
= 18 u
Difference in the number of stickers that the boys and the girls have
= 18 u - 7 u
= 11 u
(d)
Total number of stickers that the boys and girls
= 7 u + 18 u
= 25 u
Answer(s): (a) 2; (b) 16; (c) 11; (d) 25