Ken and Perry went shopping with the same amount of money. After Ken spent $81 and Perry spent $63, Perry had three times as much money left as Ken. How much money did each of them bring along for shopping?
| |
Ken |
Perry |
| Before |
1 u + $81 |
3 u + $63 |
| Change |
- $81 |
- $63 |
| After |
1 u |
3 u |
Ken and Perry brought the same amount for shopping at first.
3 u + 63 = 1 u + 81
3 u - 1 u = 81 - 63
2 u = 18
1 u = 18 ÷ 2 = 9
Amount that each of them brought along for shopping
= 1 u + 81
= 9 + 81
= $90
Answer(s): $90
