Pamela had $20 less than Emily at first. After Emily and Pamela spent an equal amount of money, Pamela had
57 as much as Emily. How much money did Pamela have left?
| |
Pamela |
Emily |
Difference |
| Before |
1 u |
1 u + $20 |
$20 |
| Change |
- 1 |
- 1 |
|
| After |
5 p |
7 p |
2 p |
Difference in the amounts between Emily and Pamela
= 7 p - 5 p
= 2 p
Since both Emily and Pamela spent an equal amount, the difference in the amounts that Emily and Pamela had at first and in the end remains unchanged.
2 p = 20
1 p = 20 ÷ 2 = 10
Amount that Pamela had left
= 5 p
= 5 x 10
= $50
Answer(s): $50
