Adam and Bryan have 280 stickers.
After Adam gives Bryan 28 stickers,
Adam has 160 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 + 188 |
1 u - 28 |
Change |
- 28 |
+ 28 |
After |
1 u + 160 |
1 u |
(a)
Total number of stickers
= 1 u + 1 u + 160
= 2 u + 160
2 u + 160 = 280
2 u = 280 - 160
2 u = 120
1 u = 120 ÷ 2 = 60
Number of stickers that Adam has at first
= 1 u + 188
= 60 + 188
= 248
(b)
Number of stickers that Bryan has in the end
= 1 u
= 60
Answer(s): (a) 248; (b) 60