Fill in the blanks.
Each boy has 3 stickers.
Each girl has 7 stickers.
The ratio of the number of boys to the number of girls is 1 : 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 |
1 u |
11 u |
Number of stickers for each child |
3 |
7 |
Total number of stickers |
1 u x 3 = 3 u |
11 u x 7 = 77 u |
(a)
Change ratio into units.
Number of boys = 1 u
Number of girls = 11 u
Difference between the number of girls and boys
= 11 u - 1 u
= 10 u
(b)
Total number of boys and girls
= 1 u + 11 u
= 12 u
(c)
Total number of stickers that the boys have
= 1 u x 3
= 3 u
Total number of stickers that the girls have
= 11 u x 7
= 77 u
Difference in the number of stickers that the boys and the girls have
= 77 u - 3 u
= 74 u
(d)
Total number of stickers that the boys and girls
= 3 u + 77 u
= 80 u
Answer(s): (a) 10; (b) 12; (c) 74; (d) 80