Adam and Bryan have 270 stickers.
After Adam gives Bryan 27 stickers,
Adam has 60 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 + 87 |
1 u - 27 |
Change |
- 27 |
+ 27 |
After |
1 u + 60 |
1 u |
(a)
Total number of stickers
= 1 u + 1 u + 60
= 2 u + 60
2 u + 60 = 270
2 u = 270 - 60
2 u = 210
1 u = 210 ÷ 2 = 105
Number of stickers that Adam has at first
= 1 u + 87
= 105 + 87
= 192
(b)
Number of stickers that Bryan has in the end
= 1 u
= 105
Answer(s): (a) 192; (b) 105