Bryan had $25 more than Oscar. Every day, Bryan and Oscar would spend an equal amount of money. After 9 days, Bryan was left with 2 times as much money as Oscar. Given that Bryan had $140 at first, how much did each of them spend every day?
| |
Oscar |
Bryan |
Difference |
| Before |
|
$140 |
$25 |
| Change |
- ? |
- ? |
|
| After |
1 u |
2 u |
1 u |
Since both Bryan and Oscar spent an equal amount of money every day, the difference in their amounts remains the same.
Difference in their amounts
= 2 u - 1 u
= 1 u
1 u = 25
1 u = 25 ÷ 1 = 25
Amount that Bryan had in the end
= 2 u
= 2 x 25
= $50
Amount that Bryan had spent
= 140 - 50
= $90
Amount that each of them spent every day
= 90 ÷ 9
= $10
Answer(s): $10
