Ethan had three times as much money as Ivan. After Ethan spent $129 and Ivan spent $27, they had the same amount of money left.
- How much did Ivan have at first?
- How much had each of them left in the end?
|
Ethan |
Ivan |
Before |
3 u |
1 u |
Change |
- 129 |
- 27 |
After |
3 u - 129 |
1 u - 27 |
The amounts that Ethan and Ivan had left in the end is the same.
3 u - 129 = 1 u - 27
3 u - 1 u = 129 - 27
2 u = 102
1 u = 102 ÷ 2 = 51
Amount that Ivan had at first
= 1 u
= $51
(a)
Amount that each of them had in the end
= 51 - 27
= $24
Answer(s): (a) $51; (b) $24