Carl had $130 more than George. After George gave $126 to Carl, Carl had 3 times as much money as George. How much money did Carl have at first?
| |
Carl |
George |
Comparing between
Carl and George
at first |
$130 more |
|
| Before |
3 u - $126 |
1 u + $126 |
| Change |
+ $126 |
- $126 |
| After |
3 u |
1 u |
Carl had $130 more than George at first. If George had another $130 at first, both of them would had the same amount of money.
3 u - 126 = 1 u + 126 + 130
3 u - 126 = 1 u + 256
3 u - 1 u = 126 + 256
2 u = 382
1 u = 382 ÷ 2 = 191
Amount that Carl had at first
= 3 u - 126
= 3 x 191 - 126
= 573 - 126
= $447
Answer(s): $447
