The ratio of the number of girls to the number of boys is 5 : 7.
Each girl is given 8 stickers.
Each boy is given 5 stickers.
The total number of stickers is 600.
- How many children are there?
- How many more boys than girls are there?
- How many more stickers are given to the girls than the boys?
|
Girls |
Boys |
Number |
5 u |
7 u |
Stickers for each person |
8 |
5 |
Total stickers |
40 u |
35 u |
(a)
Total number of stickers
= 40 u + 35 u
= 75 u
75 u = 600
1 u = 600 ÷ 75 = 8
Number of children
= 5 u + 7 u
= 12 u
= 12 x 8
= 96
(b)
Number of more boys than girls
= 7 u - 5 u
= 2 u
= 2 x 8
= 16
(c)
Number of more stickers given to the girls than boys
= 40 u - 35 u
= 5 u
= 5 x 8
= 40
Answer(s): (a) 96; (b) 16; (c) 40