Zane had $140 more than Eric. After Eric gave $125 to Zane, Zane had 3 times as much money as Eric. How much money did Zane have at first?
| |
Zane |
Eric |
Comparing between
Zane and Eric
at first |
$140 more |
|
| Before |
3 u - $125 |
1 u + $125 |
| Change |
+ $125 |
- $125 |
| After |
3 u |
1 u |
Zane had $140 more than Eric at first. If Eric had another $140 at first, both of them would had the same amount of money.
3 u - 125 = 1 u + 125 + 140
3 u - 125 = 1 u + 265
3 u - 1 u = 125 + 265
2 u = 390
1 u = 390 ÷ 2 = 195
Amount that Zane had at first
= 3 u - 125
= 3 x 195 - 125
= 585 - 125
= $460
Answer(s): $460
