Adam and Bryan have the same amount of money.
Adam spends $30 and Bryan spends $60.
In the end, Adam has 3 times as much money as Bryan.
- How much does each of them have at first?
- How much does Adam have more than Bryan in the end?
|
Adam |
Bryan |
Before |
3 u + 30 |
1 u + 60 |
Change |
- 30 |
- 60 |
After |
3 u |
1 u |
(a)
At first
Amount that Adam has = Amount that Bryan has
3 u + 30 = 1 u + 60
3 u - 1 u = 60 - 30
2 u = 30
1 u = 30 ÷ 2 = 15
Amount that each of them has at first
= 1 u + 60
= 15 + 60
= $75
(b)
Amount that Adam has more than Bryan in the end
= 3 u - 1 u
= 2 u
= 2 x 15
= $30
Answer(s): (a) $75; (b) $30