Charlie, Adam and Bryan have some stickers in the ratio of 14 : 1 : 6.
Charlie gives Adam and Bryan a total of 42 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 |
14 u |
1 u |
6 u |
Change |
- 7 u |
+ 6 u |
+ 1 u |
After |
7 u |
7 u |
7 u |
(a)
Total number of stickers
= 14 u + 1 u + 6 u
= 21 u
Number of stickers that each must have to be the same number
= 21 u ÷ 3
= 7 u
Number of stickers that Charlie gives away
= 14 u - 7 u
= 7 u
7 u = 42
1 u = 42 ÷ 7 = 6
Total number of stickers
= 21 u
= 21 x 6
= 126
(b)
Number of stickers that Charlie gives to Adam
= 7 u - 1 u
= 6 u
= 6 x 6
= 36
(c)
Number of stickers that Charlie gives to Bryan
= 7 u - 6 u
= 1 u
= 1 x 6
= 6
Answer(s): (a) 126; (b) 36; (c) 6