Perry had three times as much money as Seth. After Perry spent $123 and Seth spent $23, 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?
|
Perry |
Seth |
Before |
3 u |
1 u |
Change |
- 123 |
- 23 |
After |
3 u - 123 |
1 u - 23 |
The amounts that Perry and Seth had left in the end is the same.
3 u - 123 = 1 u - 23
3 u - 1 u = 123 - 23
2 u = 100
1 u = 100 ÷ 2 = 50
Amount that Seth had at first
= 1 u
= $50
(a)
Amount that each of them had in the end
= 50 - 23
= $27
Answer(s): (a) $50; (b) $27