The ratio of the number of girls to the number of boys is 3 : 8.
Each girl is given 10 stickers.
Each boy is given 2 stickers.
The total number of stickers is 414.
- 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 |
3 u |
8 u |
Stickers for each person |
10 |
2 |
Total stickers |
30 u |
16 u |
(a)
Total number of stickers
= 30 u + 16 u
= 46 u
46 u = 414
1 u = 414 ÷ 46 = 9
Number of children
= 3 u + 8 u
= 11 u
= 11 x 9
= 99
(b)
Number of more boys than girls
= 8 u - 3 u
= 5 u
= 5 x 9
= 45
(c)
Number of more stickers given to the girls than boys
= 30 u - 16 u
= 14 u
= 14 x 9
= 126
Answer(s): (a) 99; (b) 45; (c) 126