Perry had eight times as much money as Peter. After Perry had spent $60, Peter had twice as much money as Perry. How much more money than Peter had Perry at first?
| |
Perry |
Peter |
More |
Before
|
8x2 =
16 u |
1x2 =
2 u |
14 u |
| Change |
- $60 |
|
|
| After |
1 u |
2 u |
|
The amount that Peter had remains unchanged. Make the amount that Peter had the same. LCM of 1 and 2 is 2.
Amount that Mark had in the end = 1 u
16 u - 60 = 1 u
16 u - 1 u = 60
15 u = 60
1 u = 60 ÷ 15 = 4
Amount that Peter had more than Perry at first
= 16 u - 2 u
= 14 u
= 14 x 4
= $56
Answer(s): $56
