Adam and Bryan have 250 stickers.
After Adam gives Bryan 25 stickers,
Adam has 140 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 + 165 |
1 u - 25 |
Change |
- 25 |
+ 25 |
After |
1 u + 140 |
1 u |
(a)
Total number of stickers
= 1 u + 1 u + 140
= 2 u + 140
2 u + 140 = 250
2 u = 250 - 140
2 u = 110
1 u = 110 ÷ 2 = 55
Number of stickers that Adam has at first
= 1 u + 165
= 55 + 165
= 220
(b)
Number of stickers that Bryan has in the end
= 1 u
= 55
Answer(s): (a) 220; (b) 55