The ratio of the number of girls to the number of boys is 5 : 8.
Each girl is given 5 stickers.
Each boy is given 3 stickers.
The total number of children is 117.
- 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 |
5 |
3 |
Total stickers |
25 u |
24 u |
(a)
Number of children
= 5 u + 8 u
= 13 u
13 u = 117
1 u = 117 ÷ 13 = 9
Total number of stickers
= 25 u + 24 u
= 49 u
= 49 x 9
= 441
(b)
Number of less girls than boys
= 8 u - 5 u
= 3 u
= 3 x 9
= 27
(c)
Number of less stickers are given to the boys than the girls
= 25 u - 24 u
= 1 u
= 1 x 9
= 9
Answer(s): (a) 441; (b) 27; (c) 9