The ratio of the number of girls to the number of boys is 5 : 8.
Each girl is given 10 stickers.
Each boy is given 2 stickers.
The total number of stickers is 462.
- 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 |
8 u |
Stickers for each person |
10 |
2 |
Total stickers |
50 u |
16 u |
(a)
Total number of stickers
= 50 u + 16 u
= 66 u
66 u = 462
1 u = 462 ÷ 66 = 7
Number of children
= 5 u + 8 u
= 13 u
= 13 x 7
= 91
(b)
Number of more boys than girls
= 8 u - 5 u
= 3 u
= 3 x 7
= 21
(c)
Number of more stickers given to the girls than boys
= 50 u - 16 u
= 34 u
= 34 x 7
= 238
Answer(s): (a) 91; (b) 21; (c) 238