Vanessa went shopping with twice as much money as Marion. After Vanessa spent $250, Marion had thrice as much money as Vanessa had left. How much less money did Marion bring along for shopping than Vanessa?
| |
Vanessa |
Marion |
Difference |
| Before |
2x3 =
6 u |
1x3 =
3 u |
3 u |
| Change |
- $250 |
|
|
| After |
1 u |
3 u |
|
The amount that Marion has remains unchanged at first and in the end. Make the amount that Marion has the same. LCM of 1 and 3 is 3.
Amount that Vanessa spent
= 6 u - 1 u
= 5 u
5 u = 250
1 u = 250 ÷ 5 = 50
Amount that Marion brought along less than Vanessa
= 6 u - 3 u
= 3 u
= 3 x 50
= $150
Answer(s): $150
