Victoria went shopping with twice as much money as Shiyun. After Victoria spent $400, Shiyun had thrice as much money as Victoria had left. How much more money did Victoria bring along for shopping than Shiyun?
| |
Victoria |
Shiyun |
Difference |
| Before |
2x3 =
6 u |
1x3 =
3 u |
3 u |
| Change |
- $400 |
|
|
| After |
1 u |
3 u |
|
The amount that Shiyun has remains unchanged at first and in the end. Make the amount that Shiyun has the same. LCM of 1 and 3 is 3.
Amount that Victoria spent
= 6 u - 1 u
= 5 u
5 u = 400
1 u = 400 ÷ 5 = 80
Amount that Victoria brought along more than Shiyun
= 6 u - 3 u
= 3 u
= 3 x 80
= $240
Answer(s): $240
