Cody had $104 more than Riordan. Every day, Cody and Riordan would spend an equal amount of money. After 3 days, Cody was left with 5 times as much money as Riordan. Given that Cody had $151 at first, how much did each of them spend every day?
| |
Riordan |
Cody |
Difference |
| Before |
|
$151 |
$104 |
| Change |
- ? |
- ? |
|
| After |
1 u |
5 u |
4 u |
Since both Cody and Riordan spent an equal amount of money every day, the difference in their amounts remains the same.
Difference in their amounts
= 5 u - 1 u
= 4 u
4 u = 104
1 u = 104 ÷ 4 = 26
Amount that Cody had in the end
= 5 u
= 5 x 26
= $130
Amount that Cody had spent
= 151 - 130
= $21
Amount that each of them spent every day
= 21 ÷ 3
= $7
Answer(s): $7
