Bryan and Adam have some stickers.
When Bryan gives Adam some stickers,
Bryan's stickers is tripled.
In the end, both have 150 stickers each.
- How many stickers does Adam have at first?
- How many stickers does Bryan have at first?
|
Bryan |
Adam |
Before |
2 u + 150 |
1 u |
Change |
- 2 u |
+ 2 u |
After |
150 |
3 u = 150 |
(a)
To triple the number of stickers that Adam has
= 3 x 1 u
= 3 u
3 u = 150
1 u = 150 ÷ 3 = 50
Number of stickers that Adam has at first
= 1 u
= 50
(b)
Number of stickers that Bryan has at first
= 2 u + 150
= 2 x 50 + 150
= 100 + 150
= 250
Answer(s): (a) 50; (b) 250