The ratio of the number of boys to the number of girls is 3 : 8.
Each boy is given 7 stickers.
Each girl is given 2 stickers.
The total number of children is 77.
- 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 |
3 u |
8 u |
Stickers for each person |
7 |
2 |
Total stickers |
21 u |
16 u |
(a)
Number of children
= 3 u + 8 u
= 11 u
11 u = 77
1 u = 77 ÷ 11 = 7
Total number of stickers
= 21 u + 16 u
= 37 u
= 37 x 7
= 259
(b)
Number of less boys than girls
= 8 u - 3 u
= 5 u
= 5 x 7
= 35
(c)
Number of less stickers are given to the girls than the boys
= 21 u - 16 u
= 5 u
= 5 x 7
= 35
Answer(s): (a) 259; (b) 35; (c) 35