Bryan and Adam have 190 stickers.
After Bryan gives Adam 19 stickers,
Bryan has 100 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 + 119 |
1 u - 19 |
Change |
- 19 |
+ 19 |
After |
1 u + 100 |
1 u |
(a)
Total number of stickers
= 1 u + 1 u + 100
= 2 u + 100
2 u + 100 = 190
2 u = 190 - 100
2 u = 90
1 u = 90 ÷ 2 = 45
Number of stickers that Bryan has at first
= 1 u + 119
= 45 + 119
= 164
(b)
Number of stickers that Adam has in the end
= 1 u
= 45
Answer(s): (a) 164; (b) 45