Adam and Bryan have 430 stickers.
After Adam gives Bryan 43 stickers,
Adam has 380 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 + 423 |
1 u - 43 |
Change |
- 43 |
+ 43 |
After |
1 u + 380 |
1 u |
(a)
Total number of stickers
= 1 u + 1 u + 380
= 2 u + 380
2 u + 380 = 430
2 u = 430 - 380
2 u = 50
1 u = 50 ÷ 2 = 25
Number of stickers that Adam has at first
= 1 u + 423
= 25 + 423
= 448
(b)
Number of stickers that Bryan has in the end
= 1 u
= 25
Answer(s): (a) 448; (b) 25