Zeph had four times as much money as Seth. After Zeph spent $128 and Seth spent $20, they had the same amount of money left.
- How much did Seth have at first?
- How much had each of them left in the end?
|
Zeph |
Seth |
Before |
4 u |
1 u |
Change |
- 128 |
- 20 |
After |
4 u - 128 |
1 u - 20 |
The amounts that Zeph and Seth had left in the end is the same.
4 u - 128 = 1 u - 20
4 u - 1 u = 128 - 20
3 u = 108
1 u = 108 ÷ 3 = 36
Amount that Seth had at first
= 1 u
= $36
(a)
Amount that each of them had in the end
= 36 - 20
= $16
Answer(s): (a) $36; (b) $16