Adam and Bryan have 450 stickers.
After Adam gives Bryan 45 stickers,
Adam has 110 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 + 155 |
1 u - 45 |
Change |
- 45 |
+ 45 |
After |
1 u + 110 |
1 u |
(a)
Total number of stickers
= 1 u + 1 u + 110
= 2 u + 110
2 u + 110 = 450
2 u = 450 - 110
2 u = 340
1 u = 340 ÷ 2 = 170
Number of stickers that Adam has at first
= 1 u + 155
= 170 + 155
= 325
(b)
Number of stickers that Bryan has in the end
= 1 u
= 170
Answer(s): (a) 325; (b) 170