Tiffany had $16 more than Xuan at first. After Tiffany and Xuan spent an equal amount of money, Xuan had
57 as much as Tiffany. How much money did Tiffany have left?
|
Tiffany |
Xuan |
Difference |
Before |
1 u + $16 |
1 u |
$16 |
Change |
- 1 |
- 1 |
|
After |
7 p |
5 p |
2 p |
Difference in the amounts between Tiffany and Xuan
= 7 p - 5 p
= 2 p
Since both Tiffany and Xuan spent an equal amount, the difference in the amounts that Tiffany and Xuan had at first and in the end remains unchanged.
2 p = 16
1 p = 16 ÷ 2 = 8
Amount that Tiffany had left
= 7 p
= 7 x 8
= $56
Answer(s): $56