Adam and Bryan have 110 stickers.
After Adam gives Bryan 11 stickers,
Adam has 50 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 + 61 |
1 u - 11 |
Change |
- 11 |
+ 11 |
After |
1 u + 50 |
1 u |
(a)
Total number of stickers
= 1 u + 1 u + 50
= 2 u + 50
2 u + 50 = 110
2 u = 110 - 50
2 u = 60
1 u = 60 ÷ 2 = 30
Number of stickers that Adam has at first
= 1 u + 61
= 30 + 61
= 91
(b)
Number of stickers that Bryan has in the end
= 1 u
= 30
Answer(s): (a) 91; (b) 30