Charlie had $128 more than Oliver. Every day, Charlie would spend 3 times as much money as Oliver. After 4 days, Charlie and Oliver were left with equal amount of money. How much did Charlie spend every day?
| |
Charlie |
Oliver |
More |
| Before |
1 p + 3 u |
1 p + 1 u |
$128 |
| Change |
- 3 u |
- 1 u |
|
| After |
1 p |
1 p |
|
Amount that Charlie spent more than Oliver
= 3 u - 1 u
= 2 u
2 u = 128
1 u = 128 ÷ 2 = 64
Amount that Charlie spent in 4 days
= 3 u
= 3 x 64
= $192
Amount that Charlie spent every day
= 192 ÷ 4
= $48
Answer(s): $48
