The ratio of the number of girls to the number of boys is 4 : 7.
Each girl is given 8 stickers.
Each boy is given 3 stickers.
The total number of children is 77.
- 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 |
4 u |
7 u |
Stickers for each person |
8 |
3 |
Total stickers |
32 u |
21 u |
(a)
Number of children
= 4 u + 7 u
= 11 u
11 u = 77
1 u = 77 ÷ 11 = 7
Total number of stickers
= 32 u + 21 u
= 53 u
= 53 x 7
= 371
(b)
Number of less girls than boys
= 7 u - 4 u
= 3 u
= 3 x 7
= 21
(c)
Number of less stickers are given to the boys than the girls
= 32 u - 21 u
= 11 u
= 11 x 7
= 77
Answer(s): (a) 371; (b) 21; (c) 77