Kathy had $24 more than Min at first. After Kathy and Min spent an equal amount of money, Min had
57 as much as Kathy. How much money did Kathy have left?
| |
Kathy |
Min |
Difference |
| Before |
1 u + $24 |
1 u |
$24 |
| Change |
- 1 |
- 1 |
|
| After |
7 p |
5 p |
2 p |
Difference in the amounts between Kathy and Min
= 7 p - 5 p
= 2 p
Since both Kathy and Min spent an equal amount, the difference in the amounts that Kathy and Min had at first and in the end remains unchanged.
2 p = 24
1 p = 24 ÷ 2 = 12
Amount that Kathy had left
= 7 p
= 7 x 12
= $84
Answer(s): $84
