Julie went shopping with twice as much money as Anna. After Julie spent $200, Anna had thrice as much money as Julie had left. How much more money did Julie bring along for shopping than Anna?
| |
Julie |
Anna |
Difference |
| Before |
2x3 =
6 u |
1x3 =
3 u |
3 u |
| Change |
- $200 |
|
|
| After |
1 u |
3 u |
|
The amount that Anna has remains unchanged at first and in the end. Make the amount that Anna has the same. LCM of 1 and 3 is 3.
Amount that Julie spent
= 6 u - 1 u
= 5 u
5 u = 200
1 u = 200 ÷ 5 = 40
Amount that Julie brought along more than Anna
= 6 u - 3 u
= 3 u
= 3 x 40
= $120
Answer(s): $120
