Bryan and Adam have the same amount of money.
Bryan spends $50 and Adam spends $80.
In the end, Bryan has 3 times as much money as Adam.
- How much does each of them have at first?
- How much does Adam have less than Bryan in the end?
|
Bryan |
Adam |
Before |
3 u + 50 |
1 u + 80 |
Change |
- 50 |
- 80 |
After |
3 u |
1 u |
(a)
At first
Amount that Bryan has = Amount that Adam has
3 u + 50 = 1 u + 80
3 u - 1 u = 80 - 50
2 u = 30
1 u = 30 ÷ 2 = 15
Amount that each of them has at first
= 1 u + 80
= 15 + 80
= $95
(b)
Amount that Adam has less than Bryan in the end
= 3 u - 1 u
= 2 u
= 2 x 15
= $30
Answer(s): (a) $95; (b) $30