Adam and Bryan have 430 stickers.
After Adam gives Bryan 43 stickers,
Adam has 270 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 + 313 |
1 u - 43 |
Change |
- 43 |
+ 43 |
After |
1 u + 270 |
1 u |
(a)
Total number of stickers
= 1 u + 1 u + 270
= 2 u + 270
2 u + 270 = 430
2 u = 430 - 270
2 u = 160
1 u = 160 ÷ 2 = 80
Number of stickers that Adam has at first
= 1 u + 313
= 80 + 313
= 393
(b)
Number of stickers that Bryan has in the end
= 1 u
= 80
Answer(s): (a) 393; (b) 80