Bryan and Adam have 410 stickers.
After Bryan gives Adam 41 stickers,
Bryan has 380 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 + 421 |
1 u - 41 |
Change |
- 41 |
+ 41 |
After |
1 u + 380 |
1 u |
(a)
Total number of stickers
= 1 u + 1 u + 380
= 2 u + 380
2 u + 380 = 410
2 u = 410 - 380
2 u = 30
1 u = 30 ÷ 2 = 15
Number of stickers that Bryan has at first
= 1 u + 421
= 15 + 421
= 436
(b)
Number of stickers that Adam has in the end
= 1 u
= 15
Answer(s): (a) 436; (b) 15