Shiyun had $4 more than Cindy at first. After Shiyun and Cindy spent an equal amount of money, Cindy had
35 as much as Shiyun. How much money did Shiyun have left?
| |
Shiyun |
Cindy |
Difference |
| Before |
1 u + $4 |
1 u |
$4 |
| Change |
- 1 |
- 1 |
|
| After |
5 p |
3 p |
2 p |
Difference in the amounts between Shiyun and Cindy
= 5 p - 3 p
= 2 p
Since both Shiyun and Cindy spent an equal amount, the difference in the amounts that Shiyun and Cindy had at first and in the end remains unchanged.
2 p = 4
1 p = 4 ÷ 2 = 2
Amount that Shiyun had left
= 5 p
= 5 x 2
= $10
Answer(s): $10
