Adam and Bryan have 270 stickers.
After Adam gives Bryan 27 stickers,
Adam has 180 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 + 207 |
1 u - 27 |
Change |
- 27 |
+ 27 |
After |
1 u + 180 |
1 u |
(a)
Total number of stickers
= 1 u + 1 u + 180
= 2 u + 180
2 u + 180 = 270
2 u = 270 - 180
2 u = 90
1 u = 90 ÷ 2 = 45
Number of stickers that Adam has at first
= 1 u + 207
= 45 + 207
= 252
(b)
Number of stickers that Bryan has in the end
= 1 u
= 45
Answer(s): (a) 252; (b) 45