Bryan and Adam have 410 stickers.
After Bryan gives Adam 41 stickers,
Bryan has 180 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 + 221 |
1 u - 41 |
Change |
- 41 |
+ 41 |
After |
1 u + 180 |
1 u |
(a)
Total number of stickers
= 1 u + 1 u + 180
= 2 u + 180
2 u + 180 = 410
2 u = 410 - 180
2 u = 230
1 u = 230 ÷ 2 = 115
Number of stickers that Bryan has at first
= 1 u + 221
= 115 + 221
= 336
(b)
Number of stickers that Adam has in the end
= 1 u
= 115
Answer(s): (a) 336; (b) 115