Perry had $139 more than Simon. After Simon gave $130 to Perry, Perry had 4 times as much money as Simon. How much money did Perry have at first?
| |
Perry |
Simon |
Comparing between
Perry and Simon
at first |
$139 more |
|
| Before |
4 u - $130 |
1 u + $130 |
| Change |
+ $130 |
- $130 |
| After |
4 u |
1 u |
Perry had $139 more than Simon at first. If Simon had another $139 at first, both of them would had the same amount of money.
4 u - 130 = 1 u + 130 + 139
4 u - 130 = 1 u + 269
4 u - 1 u = 130 + 269
3 u = 399
1 u = 399 ÷ 3 = 133
Amount that Perry had at first
= 4 u - 130
= 4 x 133 - 130
= 532 - 130
= $402
Answer(s): $402
