Barbara had $4 more than Hilda at first. After Barbara and Hilda spent an equal amount of money, Hilda had
57 as much as Barbara. How much money did Barbara have left?
| |
Barbara |
Hilda |
Difference |
| Before |
1 u + $4 |
1 u |
$4 |
| Change |
- 1 |
- 1 |
|
| After |
7 p |
5 p |
2 p |
Difference in the amounts between Barbara and Hilda
= 7 p - 5 p
= 2 p
Since both Barbara and Hilda spent an equal amount, the difference in the amounts that Barbara and Hilda had at first and in the end remains unchanged.
2 p = 4
1 p = 4 ÷ 2 = 2
Amount that Barbara had left
= 7 p
= 7 x 2
= $14
Answer(s): $14
