Adam and Bryan have 140 stickers.
After Adam gives Bryan 14 stickers,
Adam has 100 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 + 114 |
1 u - 14 |
Change |
- 14 |
+ 14 |
After |
1 u + 100 |
1 u |
(a)
Total number of stickers
= 1 u + 1 u + 100
= 2 u + 100
2 u + 100 = 140
2 u = 140 - 100
2 u = 40
1 u = 40 ÷ 2 = 20
Number of stickers that Adam has at first
= 1 u + 114
= 20 + 114
= 134
(b)
Number of stickers that Bryan has in the end
= 1 u
= 20
Answer(s): (a) 134; (b) 20