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