Adam and Bryan have 370 stickers.
After Adam gives Bryan 37 stickers,
Adam has 220 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 + 257 |
1 u - 37 |
Change |
- 37 |
+ 37 |
After |
1 u + 220 |
1 u |
(a)
Total number of stickers
= 1 u + 1 u + 220
= 2 u + 220
2 u + 220 = 370
2 u = 370 - 220
2 u = 150
1 u = 150 ÷ 2 = 75
Number of stickers that Adam has at first
= 1 u + 257
= 75 + 257
= 332
(b)
Number of stickers that Bryan has in the end
= 1 u
= 75
Answer(s): (a) 332; (b) 75