Will had seven times as much money as Ken. After Will had spent $65, Ken had twice as much money as Will. How much more money than Ken had Will at first?
| |
Will |
Ken |
More |
Before
|
7x2 =
14 u |
1x2 =
2 u |
12 u |
| Change |
- $65 |
|
|
| After |
1 u |
2 u |
|
The amount that Ken had remains unchanged. Make the amount that Ken had the same. LCM of 1 and 2 is 2.
Amount that Mark had in the end = 1 u
14 u - 65 = 1 u
14 u - 1 u = 65
13 u = 65
1 u = 65 ÷ 13 = 5
Amount that Ken had more than Will at first
= 14 u - 2 u
= 12 u
= 12 x 5
= $60
Answer(s): $60
