Bryan and Adam have 320 stickers.
After Bryan gives Adam 32 stickers,
Bryan has 10 more stickers than Adam.
- How many stickers does Bryan have at first?
- How many stickers does Adam have in the end?
|
Bryan |
Adam |
Before |
1 u + 42 |
1 u - 32 |
Change |
- 32 |
+ 32 |
After |
1 u + 10 |
1 u |
(a)
Total number of stickers
= 1 u + 1 u + 10
= 2 u + 10
2 u + 10 = 320
2 u = 320 - 10
2 u = 310
1 u = 310 ÷ 2 = 155
Number of stickers that Bryan has at first
= 1 u + 42
= 155 + 42
= 197
(b)
Number of stickers that Adam has in the end
= 1 u
= 155
Answer(s): (a) 197; (b) 155