The ratio of the number of girls to the number of boys is 2 : 7.
Each girl is given 8 stickers.
Each boy is given 2 stickers.
The total number of children is 36.
- 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 |
2 u |
7 u |
Stickers for each person |
8 |
2 |
Total stickers |
16 u |
14 u |
(a)
Number of children
= 2 u + 7 u
= 9 u
9 u = 36
1 u = 36 ÷ 9 = 4
Total number of stickers
= 16 u + 14 u
= 30 u
= 30 x 4
= 120
(b)
Number of less girls than boys
= 7 u - 2 u
= 5 u
= 5 x 4
= 20
(c)
Number of less stickers are given to the boys than the girls
= 16 u - 14 u
= 2 u
= 2 x 4
= 8
Answer(s): (a) 120; (b) 20; (c) 8