Liam had $121 more than Ben. After Ben gave $121 to Liam, Liam had 4 times as much money as Ben. How much money did Liam have at first?
| |
Liam |
Ben |
Comparing between
Liam and Ben
at first |
$121 more |
|
| Before |
4 u - $121 |
1 u + $121 |
| Change |
+ $121 |
- $121 |
| After |
4 u |
1 u |
Liam had $121 more than Ben at first. If Ben had another $121 at first, both of them would had the same amount of money.
4 u - 121 = 1 u + 121 + 121
4 u - 121 = 1 u + 242
4 u - 1 u = 121 + 242
3 u = 363
1 u = 363 ÷ 3 = 121
Amount that Liam had at first
= 4 u - 121
= 4 x 121 - 121
= 484 - 121
= $363
Answer(s): $363
