Vincent had thrice as much money as Ivan. After Vincent had spent $70, Ivan had twice as much money as Vincent. How much more money than Ivan had Vincent at first?
| |
Vincent |
Ivan |
More |
Before
|
3x2 =
6 u |
1x2 =
2 u |
4 u |
| Change |
- $70 |
|
|
| After |
1 u |
2 u |
|
The amount that Ivan had remains unchanged. Make the amount that Ivan had the same. LCM of 1 and 2 is 2.
Amount that Mark had in the end = 1 u
6 u - 70 = 1 u
6 u - 1 u = 70
5 u = 70
1 u = 70 ÷ 5 = 14
Amount that Ivan had more than Vincent at first
= 6 u - 2 u
= 4 u
= 4 x 14
= $56
Answer(s): $56
