Adam and Bryan have the same amount of money.
Adam spends $10 and Bryan spends $30.
In the end, Adam has 5 times as much money as Bryan.
- How much does each of them have at first?
- How much does Bryan have less than Adam in the end?
|
Adam |
Bryan |
Before |
5 u + 10 |
1 u + 30 |
Change |
- 10 |
- 30 |
After |
5 u |
1 u |
(a)
At first
Amount that Adam has = Amount that Bryan has
5 u + 10 = 1 u + 30
5 u - 1 u = 30 - 10
4 u = 20
1 u = 20 ÷ 4 = 5
Amount that each of them has at first
= 1 u + 30
= 5 + 30
= $35
(b)
Amount that Bryan has less than Adam in the end
= 5 u - 1 u
= 4 u
= 4 x 5
= $20
Answer(s): (a) $35; (b) $20