Adam and Bryan have 230 stickers.
After Adam gives Bryan 23 stickers,
Adam has 130 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 + 153 |
1 u - 23 |
Change |
- 23 |
+ 23 |
After |
1 u + 130 |
1 u |
(a)
Total number of stickers
= 1 u + 1 u + 130
= 2 u + 130
2 u + 130 = 230
2 u = 230 - 130
2 u = 100
1 u = 100 ÷ 2 = 50
Number of stickers that Adam has at first
= 1 u + 153
= 50 + 153
= 203
(b)
Number of stickers that Bryan has in the end
= 1 u
= 50
Answer(s): (a) 203; (b) 50