The ratio of the number of boys to the number of girls is 3 : 5.
Each boy is given 8 stickers.
Each girl is given 2 stickers.
The total number of stickers is 272.
- 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 |
5 u |
Stickers for each person |
8 |
2 |
Total stickers |
24 u |
10 u |
(a)
Total number of stickers
= 24 u + 10 u
= 34 u
34 u = 272
1 u = 272 ÷ 34 = 8
Number of children
= 3 u + 5 u
= 8 u
= 8 x 8
= 64
(b)
Number of more girls than boys
= 5 u - 3 u
= 2 u
= 2 x 8
= 16
(c)
Number of more stickers given to the boys than girls
= 24 u - 10 u
= 14 u
= 14 x 8
= 112
Answer(s): (a) 64; (b) 16; (c) 112