The ratio of the number of girls to the number of boys is 5 : 8.
Each girl is given 7 stickers.
Each boy is given 4 stickers.
The total number of children is 91.
- 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 |
7 |
4 |
Total stickers |
35 u |
32 u |
(a)
Number of children
= 5 u + 8 u
= 13 u
13 u = 91
1 u = 91 ÷ 13 = 7
Total number of stickers
= 35 u + 32 u
= 67 u
= 67 x 7
= 469
(b)
Number of less girls than boys
= 8 u - 5 u
= 3 u
= 3 x 7
= 21
(c)
Number of less stickers are given to the boys than the girls
= 35 u - 32 u
= 3 u
= 3 x 7
= 21
Answer(s): (a) 469; (b) 21; (c) 21