Cole had nine times as much money as Zane. After Cole had spent $62, Zane had seven times as much money as Cole. How much more money than Zane had Cole at first?
| |
Cole |
Zane |
More |
Before
|
9x7 =
63 u |
1x7 =
7 u |
56 u |
| Change |
- $62 |
|
|
| After |
1 u |
7 u |
|
The amount that Zane had remains unchanged. Make the amount that Zane had the same. LCM of 1 and 7 is 7.
Amount that Mark had in the end = 1 u
63 u - 62 = 1 u
63 u - 1 u = 62
62 u = 62
1 u = 62 ÷ 62 = 1
Amount that Zane had more than Cole at first
= 63 u - 7 u
= 56 u
= 56 x 1
= $56
Answer(s): $56
