Adam and Bryan have 230 stickers.
After Adam gives Bryan 23 stickers,
Adam has 210 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 + 233 |
1 u - 23 |
Change |
- 23 |
+ 23 |
After |
1 u + 210 |
1 u |
(a)
Total number of stickers
= 1 u + 1 u + 210
= 2 u + 210
2 u + 210 = 230
2 u = 230 - 210
2 u = 20
1 u = 20 ÷ 2 = 10
Number of stickers that Adam has at first
= 1 u + 233
= 10 + 233
= 243
(b)
Number of stickers that Bryan has in the end
= 1 u
= 10
Answer(s): (a) 243; (b) 10