Bryan and Adam have 420 stickers.
After Bryan gives Adam 42 stickers,
Bryan has 260 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 + 302 |
1 u - 42 |
Change |
- 42 |
+ 42 |
After |
1 u + 260 |
1 u |
(a)
Total number of stickers
= 1 u + 1 u + 260
= 2 u + 260
2 u + 260 = 420
2 u = 420 - 260
2 u = 160
1 u = 160 ÷ 2 = 80
Number of stickers that Bryan has at first
= 1 u + 302
= 80 + 302
= 382
(b)
Number of stickers that Adam has in the end
= 1 u
= 80
Answer(s): (a) 382; (b) 80