The ratio of the number of boys to the number of girls is 5 : 8.
Each boy is given 8 stickers.
Each girl is given 4 stickers.
The total number of stickers is 792.
- How many children are there?
- How many more girls than boys are there?
- How many more stickers are given to the boys than the girls?
|
Boys |
Girls |
Number |
5 u |
8 u |
Stickers for each person |
8 |
4 |
Total stickers |
40 u |
32 u |
(a)
Total number of stickers
= 40 u + 32 u
= 72 u
72 u = 792
1 u = 792 ÷ 72 = 11
Number of children
= 5 u + 8 u
= 13 u
= 13 x 11
= 143
(b)
Number of more girls than boys
= 8 u - 5 u
= 3 u
= 3 x 11
= 33
(c)
Number of more stickers given to the boys than girls
= 40 u - 32 u
= 8 u
= 8 x 11
= 88
Answer(s): (a) 143; (b) 33; (c) 88