Adam and Bryan have some stickers.
When Adam gives Bryan some stickers,
Bryan's stickers is doubled.
In the end, both have 130 stickers each.
- How many stickers does Bryan have at first?
- How many stickers does Adam have at first?
|
Adam |
Bryan |
Before |
1 u + 130 |
1 u |
Change |
- 1 u |
+ 1 u |
After |
130 |
2 u = 130 |
(a)
To double the number of stickers that Bryan has
= 2 x 1 u
= 2 u
2 u = 130
1 u = 130 ÷ 2 = 65
Number of stickers that Bryan has at first
= 1 u
= 65
(b)
Number of stickers that Adam has at first
= 1 u + 130
= 65 + 130
= 195
Answer(s): (a) 65; (b) 195