Adam and Bryan have 410 stickers.
After Adam gives Bryan 41 stickers,
Adam has 230 more stickers than Bryan.
- How many stickers does Adam have at first?
- How many stickers does Bryan have in the end?
|
Adam |
Bryan |
Before |
1 u + 271 |
1 u - 41 |
Change |
- 41 |
+ 41 |
After |
1 u + 230 |
1 u |
(a)
Total number of stickers
= 1 u + 1 u + 230
= 2 u + 230
2 u + 230 = 410
2 u = 410 - 230
2 u = 180
1 u = 180 ÷ 2 = 90
Number of stickers that Adam has at first
= 1 u + 271
= 90 + 271
= 361
(b)
Number of stickers that Bryan has in the end
= 1 u
= 90
Answer(s): (a) 361; (b) 90