Oliver had four times as much money as Vincent. After Oliver had spent $112, Vincent had twice as much money as Oliver. How much more money than Vincent had Oliver at first?
| |
Oliver |
Vincent |
More |
Before
|
4x2 =
8 u |
1x2 =
2 u |
6 u |
| Change |
- $112 |
|
|
| After |
1 u |
2 u |
|
The amount that Vincent had remains unchanged. Make the amount that Vincent had the same. LCM of 1 and 2 is 2.
Amount that Mark had in the end = 1 u
8 u - 112 = 1 u
8 u - 1 u = 112
7 u = 112
1 u = 112 ÷ 7 = 16
Amount that Vincent had more than Oliver at first
= 8 u - 2 u
= 6 u
= 6 x 16
= $96
Answer(s): $96
