Adam and Bryan have 190 stickers.
After Adam gives Bryan 19 stickers,
Adam has 120 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 + 139 |
1 u - 19 |
Change |
- 19 |
+ 19 |
After |
1 u + 120 |
1 u |
(a)
Total number of stickers
= 1 u + 1 u + 120
= 2 u + 120
2 u + 120 = 190
2 u = 190 - 120
2 u = 70
1 u = 70 ÷ 2 = 35
Number of stickers that Adam has at first
= 1 u + 139
= 35 + 139
= 174
(b)
Number of stickers that Bryan has in the end
= 1 u
= 35
Answer(s): (a) 174; (b) 35