Adam, Charlie and Bryan have some stickers in the ratio of 14 : 4 : 3.
Adam gives Charlie and Bryan a total of 119 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 Adam gives to Charlie?
- What is the number of stickers that Adam gives to Bryan?
|
Adam |
Charlie |
Bryan |
Before |
14 u |
4 u |
3 u |
Change |
- 7 u |
+ 3 u |
+ 4 u |
After |
7 u |
7 u |
7 u |
(a)
Total number of stickers
= 14 u + 4 u + 3 u
= 21 u
Number of stickers that each must have to be the same number
= 21 u ÷ 3
= 7 u
Number of stickers that Adam gives away
= 14 u - 7 u
= 7 u
7 u = 119
1 u = 119 ÷ 7 = 17
Total number of stickers
= 21 u
= 21 x 17
= 357
(b)
Number of stickers that Adam gives to Charlie
= 7 u - 4 u
= 3 u
= 3 x 17
= 51
(c)
Number of stickers that Adam gives to Bryan
= 7 u - 3 u
= 4 u
= 4 x 17
= 68
Answer(s): (a) 357; (b) 51; (c) 68