Adam and Bryan have 290 stickers.
After Adam gives Bryan 29 stickers,
Adam has 250 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 + 279 |
1 u - 29 |
Change |
- 29 |
+ 29 |
After |
1 u + 250 |
1 u |
(a)
Total number of stickers
= 1 u + 1 u + 250
= 2 u + 250
2 u + 250 = 290
2 u = 290 - 250
2 u = 40
1 u = 40 ÷ 2 = 20
Number of stickers that Adam has at first
= 1 u + 279
= 20 + 279
= 299
(b)
Number of stickers that Bryan has in the end
= 1 u
= 20
Answer(s): (a) 299; (b) 20