Pamela had $10 more than Cathy at first. After Pamela and Cathy spent an equal amount of money, Cathy had
35 as much as Pamela. How much money did Pamela have left?
| |
Pamela |
Cathy |
Difference |
| Before |
1 u + $10 |
1 u |
$10 |
| Change |
- 1 |
- 1 |
|
| After |
5 p |
3 p |
2 p |
Difference in the amounts between Pamela and Cathy
= 5 p - 3 p
= 2 p
Since both Pamela and Cathy spent an equal amount, the difference in the amounts that Pamela and Cathy had at first and in the end remains unchanged.
2 p = 10
1 p = 10 ÷ 2 = 5
Amount that Pamela had left
= 5 p
= 5 x 5
= $25
Answer(s): $25
