Adam and Bryan have 470 stickers.
After Adam gives Bryan 47 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 + 147 |
1 u - 47 |
Change |
- 47 |
+ 47 |
After |
1 u + 100 |
1 u |
(a)
Total number of stickers
= 1 u + 1 u + 100
= 2 u + 100
2 u + 100 = 470
2 u = 470 - 100
2 u = 370
1 u = 370 ÷ 2 = 185
Number of stickers that Adam has at first
= 1 u + 147
= 185 + 147
= 332
(b)
Number of stickers that Bryan has in the end
= 1 u
= 185
Answer(s): (a) 332; (b) 185