Cody had $140 more than Seth. Every day, Cody would spend 3 times as much money as Seth. After 7 days, Cody and Seth were left with equal amount of money. How much did Cody spend every day?
| |
Cody |
Seth |
More |
| Before |
1 p + 3 u |
1 p + 1 u |
$140 |
| Change |
- 3 u |
- 1 u |
|
| After |
1 p |
1 p |
|
Amount that Cody spent more than Seth
= 3 u - 1 u
= 2 u
2 u = 140
1 u = 140 ÷ 2 = 70
Amount that Cody spent in 7 days
= 3 u
= 3 x 70
= $210
Amount that Cody spent every day
= 210 ÷ 7
= $30
Answer(s): $30
