Vaidev had $140 more than Peter. After Peter gave $137 to Vaidev, Vaidev had 3 times as much money as Peter. How much money did Vaidev have at first?
| |
Vaidev |
Peter |
Comparing between
Vaidev and Peter
at first |
$140 more |
|
| Before |
3 u - $137 |
1 u + $137 |
| Change |
+ $137 |
- $137 |
| After |
3 u |
1 u |
Vaidev had $140 more than Peter at first. If Peter had another $140 at first, both of them would had the same amount of money.
3 u - 137 = 1 u + 137 + 140
3 u - 137 = 1 u + 277
3 u - 1 u = 137 + 277
2 u = 414
1 u = 414 ÷ 2 = 207
Amount that Vaidev had at first
= 3 u - 137
= 3 x 207 - 137
= 621 - 137
= $484
Answer(s): $484
