Adam and Bryan have some stickers.
When Adam gives Bryan some stickers,
Bryan's stickers is tripled.
In the end, both have 60 stickers each.
- How many stickers does Bryan have at first?
- How many stickers does Adam have at first?
|
Adam |
Bryan |
Before |
2 u + 60 |
1 u |
Change |
- 2 u |
+ 2 u |
After |
60 |
3 u = 60 |
(a)
To triple the number of stickers that Bryan has
= 3 x 1 u
= 3 u
3 u = 60
1 u = 60 ÷ 3 = 20
Number of stickers that Bryan has at first
= 1 u
= 20
(b)
Number of stickers that Adam has at first
= 2 u + 60
= 2 x 20 + 60
= 40 + 60
= 100
Answer(s): (a) 20; (b) 100