Ben and Simon had a total of $103. Ben gave $16 to Simon. In return, Simon gave $29 to Ben. In the end, Ben had $21 more than Simon. How much money did Ben have at first?
| |
Ben |
Simon |
Total |
| Before |
? |
|
$103 |
| Change 1 |
- $16 |
+ $16 |
|
| Change 2 |
+ $29 |
- $29 |
|
| After |
1 u + $21 |
1 u |
$103 |
Total amount that Ben and Simon had
= 1 u + 1 u + $21
= 2 u + 21
2 u + 21 = 103
2 u = 103 - 21
2 u = 82
1 u = 82 ÷ 2 = 41
Amount that Ben had in the end
= 1 u + 21
= 41 + 21
= $62
Amount that Ben had at first
= 62 - 29 + 16
= $49
Answer(s): $49
