Adam and Bryan have 410 stickers.
After Adam gives Bryan 41 stickers,
Adam has 320 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 + 361 |
1 u - 41 |
Change |
- 41 |
+ 41 |
After |
1 u + 320 |
1 u |
(a)
Total number of stickers
= 1 u + 1 u + 320
= 2 u + 320
2 u + 320 = 410
2 u = 410 - 320
2 u = 90
1 u = 90 ÷ 2 = 45
Number of stickers that Adam has at first
= 1 u + 361
= 45 + 361
= 406
(b)
Number of stickers that Bryan has in the end
= 1 u
= 45
Answer(s): (a) 406; (b) 45