Xuan had $18 less than Vanessa at first. After Vanessa and Xuan spent an equal amount of money, Xuan had
35 as much as Vanessa. How much money did Xuan have left?
| |
Xuan |
Vanessa |
Difference |
| Before |
1 u |
1 u + $18 |
$18 |
| Change |
- 1 |
- 1 |
|
| After |
3 p |
5 p |
2 p |
Difference in the amounts between Vanessa and Xuan
= 5 p - 3 p
= 2 p
Since both Vanessa and Xuan spent an equal amount, the difference in the amounts that Vanessa and Xuan had at first and in the end remains unchanged.
2 p = 18
1 p = 18 ÷ 2 = 9
Amount that Xuan had left
= 3 p
= 3 x 9
= $27
Answer(s): $27
