The ratio of the number of boys to the number of girls is 2 : 5.
Each boy is given 8 stickers.
Each girl is given 3 stickers.
The total number of children is 42.
- 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 |
2 u |
5 u |
Stickers for each person |
8 |
3 |
Total stickers |
16 u |
15 u |
(a)
Number of children
= 2 u + 5 u
= 7 u
7 u = 42
1 u = 42 ÷ 7 = 6
Total number of stickers
= 16 u + 15 u
= 31 u
= 31 x 6
= 186
(b)
Number of less boys than girls
= 5 u - 2 u
= 3 u
= 3 x 6
= 18
(c)
Number of less stickers are given to the girls than the boys
= 16 u - 15 u
= 1 u
= 1 x 6
= 6
Answer(s): (a) 186; (b) 18; (c) 6