Bryan and Adam have 220 stickers.
After Bryan gives Adam 22 stickers,
Bryan has 90 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 + 112 |
1 u - 22 |
Change |
- 22 |
+ 22 |
After |
1 u + 90 |
1 u |
(a)
Total number of stickers
= 1 u + 1 u + 90
= 2 u + 90
2 u + 90 = 220
2 u = 220 - 90
2 u = 130
1 u = 130 ÷ 2 = 65
Number of stickers that Bryan has at first
= 1 u + 112
= 65 + 112
= 177
(b)
Number of stickers that Adam has in the end
= 1 u
= 65
Answer(s): (a) 177; (b) 65