Jaslyn went shopping with thrice as much money as Jean. After Jaslyn spent $480, Jean had thrice as much money as Jaslyn had left. How much more money did Jaslyn bring along for shopping than Jean?
| |
Jaslyn |
Jean |
Difference |
| Before |
3x3 =
9 u |
1x3 =
3 u |
6 u |
| Change |
- $480 |
|
|
| After |
1 u |
3 u |
|
The amount that Jean has remains unchanged at first and in the end. Make the amount that Jean has the same. LCM of 1 and 3 is 3.
Amount that Jaslyn spent
= 9 u - 1 u
= 8 u
8 u = 480
1 u = 480 ÷ 8 = 60
Amount that Jaslyn brought along more than Jean
= 9 u - 3 u
= 6 u
= 6 x 60
= $360
Answer(s): $360
