Bryan and Adam have 230 stickers.
After Bryan gives Adam 23 stickers,
Bryan has 150 more stickers than Adam.
- How many stickers does Bryan have at first?
- How many stickers does Adam have in the end?
|
Bryan |
Adam |
Before |
1 u + 173 |
1 u - 23 |
Change |
- 23 |
+ 23 |
After |
1 u + 150 |
1 u |
(a)
Total number of stickers
= 1 u + 1 u + 150
= 2 u + 150
2 u + 150 = 230
2 u = 230 - 150
2 u = 80
1 u = 80 ÷ 2 = 40
Number of stickers that Bryan has at first
= 1 u + 173
= 40 + 173
= 213
(b)
Number of stickers that Adam has in the end
= 1 u
= 40
Answer(s): (a) 213; (b) 40