Adam and Bryan have 480 stickers.
After Adam gives Bryan 48 stickers,
Adam has 220 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 + 268 |
1 u - 48 |
Change |
- 48 |
+ 48 |
After |
1 u + 220 |
1 u |
(a)
Total number of stickers
= 1 u + 1 u + 220
= 2 u + 220
2 u + 220 = 480
2 u = 480 - 220
2 u = 260
1 u = 260 ÷ 2 = 130
Number of stickers that Adam has at first
= 1 u + 268
= 130 + 268
= 398
(b)
Number of stickers that Bryan has in the end
= 1 u
= 130
Answer(s): (a) 398; (b) 130