Bryan and Adam have 470 stickers.
After Bryan gives Adam 47 stickers,
Bryan has 130 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 + 177 |
1 u - 47 |
Change |
- 47 |
+ 47 |
After |
1 u + 130 |
1 u |
(a)
Total number of stickers
= 1 u + 1 u + 130
= 2 u + 130
2 u + 130 = 470
2 u = 470 - 130
2 u = 340
1 u = 340 ÷ 2 = 170
Number of stickers that Bryan has at first
= 1 u + 177
= 170 + 177
= 347
(b)
Number of stickers that Adam has in the end
= 1 u
= 170
Answer(s): (a) 347; (b) 170