Adam and Bryan have 120 stickers.
After Adam gives Bryan 12 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 + 62 |
1 u - 12 |
Change |
- 12 |
+ 12 |
After |
1 u + 50 |
1 u |
(a)
Total number of stickers
= 1 u + 1 u + 50
= 2 u + 50
2 u + 50 = 120
2 u = 120 - 50
2 u = 70
1 u = 70 ÷ 2 = 35
Number of stickers that Adam has at first
= 1 u + 62
= 35 + 62
= 97
(b)
Number of stickers that Bryan has in the end
= 1 u
= 35
Answer(s): (a) 97; (b) 35