Perry had $78 more than Zane. Every day, Perry and Zane would spend an equal amount of money. After 3 days, Perry was left with 4 times as much money as Zane. Given that Perry had $125 at first, how much did each of them spend every day?
| |
Zane |
Perry |
Difference |
| Before |
|
$125 |
$78 |
| Change |
- ? |
- ? |
|
| After |
1 u |
4 u |
3 u |
Since both Perry and Zane spent an equal amount of money every day, the difference in their amounts remains the same.
Difference in their amounts
= 4 u - 1 u
= 3 u
3 u = 78
1 u = 78 ÷ 3 = 26
Amount that Perry had in the end
= 4 u
= 4 x 26
= $104
Amount that Perry had spent
= 125 - 104
= $21
Amount that each of them spent every day
= 21 ÷ 3
= $7
Answer(s): $7
