Adam and Bryan have 470 stickers.
After Adam gives Bryan 47 stickers,
Adam has 200 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 + 247 |
1 u - 47 |
Change |
- 47 |
+ 47 |
After |
1 u + 200 |
1 u |
(a)
Total number of stickers
= 1 u + 1 u + 200
= 2 u + 200
2 u + 200 = 470
2 u = 470 - 200
2 u = 270
1 u = 270 ÷ 2 = 135
Number of stickers that Adam has at first
= 1 u + 247
= 135 + 247
= 382
(b)
Number of stickers that Bryan has in the end
= 1 u
= 135
Answer(s): (a) 382; (b) 135