The ratio of the number of boys to the number of girls is 4 : 7.
Each boy is given 5 stickers.
Each girl is given 2 stickers.
The total number of children is 121.
- How many stickers are given to the children?
- How many less boys than girls are there?
- How many less stickers are given to the girls than the boys?
|
Boys |
Girls |
Number |
4 u |
7 u |
Stickers for each person |
5 |
2 |
Total stickers |
20 u |
14 u |
(a)
Number of children
= 4 u + 7 u
= 11 u
11 u = 121
1 u = 121 ÷ 11 = 11
Total number of stickers
= 20 u + 14 u
= 34 u
= 34 x 11
= 374
(b)
Number of less boys than girls
= 7 u - 4 u
= 3 u
= 3 x 11
= 33
(c)
Number of less stickers are given to the girls than the boys
= 20 u - 14 u
= 6 u
= 6 x 11
= 66
Answer(s): (a) 374; (b) 33; (c) 66