Charlie and Bobby had a total of $142. Charlie gave $20 to Bobby. In return, Bobby gave $23 to Charlie. In the end, Charlie had $38 more than Bobby. How much money did Charlie have at first?
| |
Charlie |
Bobby |
Total |
| Before |
? |
|
$142 |
| Change 1 |
- $20 |
+ $20 |
|
| Change 2 |
+ $23 |
- $23 |
|
| After |
1 u + $38 |
1 u |
$142 |
Total amount that Charlie and Bobby had
= 1 u + 1 u + $38
= 2 u + 38
2 u + 38 = 142
2 u = 142 - 38
2 u = 104
1 u = 104 ÷ 2 = 52
Amount that Charlie had in the end
= 1 u + 38
= 52 + 38
= $90
Amount that Charlie had at first
= 90 - 23 + 20
= $87
Answer(s): $87
