Vanessa went shopping with twice as much money as Kimberly. After Vanessa spent $350, Kimberly had four times as much money as Vanessa had left. How much less money did Kimberly bring along for shopping than Vanessa?
| |
Vanessa |
Kimberly |
Difference |
| Before |
2x4 =
8 u |
1x4 =
4 u |
4 u |
| Change |
- $350 |
|
|
| After |
1 u |
4 u |
|
The amount that Kimberly has remains unchanged at first and in the end. Make the amount that Kimberly has the same. LCM of 1 and 4 is 4.
Amount that Vanessa spent
= 8 u - 1 u
= 7 u
7 u = 350
1 u = 350 ÷ 7 = 50
Amount that Kimberly brought along less than Vanessa
= 8 u - 4 u
= 4 u
= 4 x 50
= $200
Answer(s): $200
