Charlie, Adam and Bryan have some stickers in the ratio of 13 : 5 : 6.
Charlie gives Adam and Bryan a total of 65 stickers.
Now they have same number of stickers.
- What is the total number of stickers that they have?
- What is the number of stickers that Charlie gives to Adam?
- What is the number of stickers that Charlie gives to Bryan?
|
Charlie |
Adam |
Bryan |
Before |
13 u |
5 u |
6 u |
Change |
- 5 u |
+ 3 u |
+ 2 u |
After |
8 u |
8 u |
8 u |
(a)
Total number of stickers
= 13 u + 5 u + 6 u
= 24 u
Number of stickers that each must have to be the same number
= 24 u ÷ 3
= 8 u
Number of stickers that Charlie gives away
= 13 u - 8 u
= 5 u
5 u = 65
1 u = 65 ÷ 5 = 13
Total number of stickers
= 24 u
= 24 x 13
= 312
(b)
Number of stickers that Charlie gives to Adam
= 8 u - 5 u
= 3 u
= 3 x 13
= 39
(c)
Number of stickers that Charlie gives to Bryan
= 8 u - 6 u
= 2 u
= 2 x 13
= 26
Answer(s): (a) 312; (b) 39; (c) 26