Cathy had $14 more than Usha at first. After Cathy and Usha spent an equal amount of money, Usha had
57 as much as Cathy. How much money did Cathy have left?
| |
Cathy |
Usha |
Difference |
| Before |
1 u + $14 |
1 u |
$14 |
| Change |
- 1 |
- 1 |
|
| After |
7 p |
5 p |
2 p |
Difference in the amounts between Cathy and Usha
= 7 p - 5 p
= 2 p
Since both Cathy and Usha spent an equal amount, the difference in the amounts that Cathy and Usha had at first and in the end remains unchanged.
2 p = 14
1 p = 14 ÷ 2 = 7
Amount that Cathy had left
= 7 p
= 7 x 7
= $49
Answer(s): $49
