Bryan and Adam have 480 stickers.
After Bryan gives Adam 48 stickers,
Bryan has 400 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 + 448 |
1 u - 48 |
Change |
- 48 |
+ 48 |
After |
1 u + 400 |
1 u |
(a)
Total number of stickers
= 1 u + 1 u + 400
= 2 u + 400
2 u + 400 = 480
2 u = 480 - 400
2 u = 80
1 u = 80 ÷ 2 = 40
Number of stickers that Bryan has at first
= 1 u + 448
= 40 + 448
= 488
(b)
Number of stickers that Adam has in the end
= 1 u
= 40
Answer(s): (a) 488; (b) 40