Fiona went shopping with thrice as much money as Raeann. After Fiona spent $330, Raeann had four times as much money as Fiona had left. How much more money did Fiona bring along for shopping than Raeann?
| |
Fiona |
Raeann |
Difference |
| Before |
3x4 =
12 u |
1x4 =
4 u |
8 u |
| Change |
- $330 |
|
|
| After |
1 u |
4 u |
|
The amount that Raeann has remains unchanged at first and in the end. Make the amount that Raeann has the same. LCM of 1 and 4 is 4.
Amount that Fiona spent
= 12 u - 1 u
= 11 u
11 u = 330
1 u = 330 ÷ 11 = 30
Amount that Fiona brought along more than Raeann
= 12 u - 4 u
= 8 u
= 8 x 30
= $240
Answer(s): $240
