Will had four times as much money as Ethan. After Will had spent $91, Ethan had twice as much money as Will. How much more money than Ethan had Will at first?
| |
Will |
Ethan |
More |
Before
|
4x2 =
8 u |
1x2 =
2 u |
6 u |
| Change |
- $91 |
|
|
| After |
1 u |
2 u |
|
The amount that Ethan had remains unchanged. Make the amount that Ethan had the same. LCM of 1 and 2 is 2.
Amount that Mark had in the end = 1 u
8 u - 91 = 1 u
8 u - 1 u = 91
7 u = 91
1 u = 91 ÷ 7 = 13
Amount that Ethan had more than Will at first
= 8 u - 2 u
= 6 u
= 6 x 13
= $78
Answer(s): $78
