The ratio of the number of girls to the number of boys is 5 : 8.
Each girl is given 8 stickers.
Each boy is given 3 stickers.
The total number of children is 130.
- How many stickers are given to the children?
- How many less girls than boys are there?
- How many less stickers are given to the boys than the girls?
|
Girls |
Boys |
Number |
5 u |
8 u |
Stickers for each person |
8 |
3 |
Total stickers |
40 u |
24 u |
(a)
Number of children
= 5 u + 8 u
= 13 u
13 u = 130
1 u = 130 ÷ 13 = 10
Total number of stickers
= 40 u + 24 u
= 64 u
= 64 x 10
= 640
(b)
Number of less girls than boys
= 8 u - 5 u
= 3 u
= 3 x 10
= 30
(c)
Number of less stickers are given to the boys than the girls
= 40 u - 24 u
= 16 u
= 16 x 10
= 160
Answer(s): (a) 640; (b) 30; (c) 160