Ryan and Ben had a total of $167. Ryan gave $12 to Ben. In return, Ben gave $21 to Ryan. In the end, Ryan had $17 more than Ben. How much money did Ryan have at first?
| |
Ryan |
Ben |
Total |
| Before |
? |
|
$167 |
| Change 1 |
- $12 |
+ $12 |
|
| Change 2 |
+ $21 |
- $21 |
|
| After |
1 u + $17 |
1 u |
$167 |
Total amount that Ryan and Ben had
= 1 u + 1 u + $17
= 2 u + 17
2 u + 17 = 167
2 u = 167 - 17
2 u = 150
1 u = 150 ÷ 2 = 75
Amount that Ryan had in the end
= 1 u + 17
= 75 + 17
= $92
Amount that Ryan had at first
= 92 - 21 + 12
= $83
Answer(s): $83
