The ratio of the number of boys to the number of girls is 3 : 5.
Each boy is given 7 stickers.
Each girl is given 3 stickers.
The total number of children is 64.
- 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 |
5 u |
Stickers for each person |
7 |
3 |
Total stickers |
21 u |
15 u |
(a)
Number of children
= 3 u + 5 u
= 8 u
8 u = 64
1 u = 64 ÷ 8 = 8
Total number of stickers
= 21 u + 15 u
= 36 u
= 36 x 8
= 288
(b)
Number of less boys than girls
= 5 u - 3 u
= 2 u
= 2 x 8
= 16
(c)
Number of less stickers are given to the girls than the boys
= 21 u - 15 u
= 6 u
= 6 x 8
= 48
Answer(s): (a) 288; (b) 16; (c) 48