Adam has 800 stickers more than Bryan.
Adam gives Bryan 100 stickers.
Now, Adam has 6 times as many stickers as Bryan.
- How many stickers does Adam have in the end?
- How many stickers does Bryan have in the end?
|
Adam |
Bryan |
Before |
6 u + 100 |
1 u - 100 |
Change |
- 100 |
+ 100 |
After |
6 u |
1 u |
(a)
At first
Number of stickers that Adam has = 6 u + 100
Number of stickers that Bryan has = 1 u - 100
In the end
Number of stickers that Adam has = 6 u
Number of stickers that Bryan has = 1 u
If the number of stickers that Bryan has at first increases by 800, he will have as many stickers as Adam at first.
6 u + 100 = 1 u - 100 + 800
6 u + 100 = 1 u + 700
6 u - 1 u = 700 - 100
5 u = 600
1 u = 600 ÷ 5 = 120
Number of stickers that Adam in the end
= 6 u
= 6 x 120
= 720
(b)
Number of stickers that Bryan has in the end
= 1 u
= 120
Answer(s): (a) 720; (b) 120