The ratio of the number of boys to the number of girls is 3 : 8.
Each boy is given 10 stickers.
Each girl is given 3 stickers.
The total number of stickers is 324.
- How many children are there?
- How many more girls than boys are there?
- How many more stickers are given to the boys than the girls?
|
Boys |
Girls |
Number |
3 u |
8 u |
Stickers for each person |
10 |
3 |
Total stickers |
30 u |
24 u |
(a)
Total number of stickers
= 30 u + 24 u
= 54 u
54 u = 324
1 u = 324 ÷ 54 = 6
Number of children
= 3 u + 8 u
= 11 u
= 11 x 6
= 66
(b)
Number of more girls than boys
= 8 u - 3 u
= 5 u
= 5 x 6
= 30
(c)
Number of more stickers given to the boys than girls
= 30 u - 24 u
= 6 u
= 6 x 6
= 36
Answer(s): (a) 66; (b) 30; (c) 36