Billy had five times as much money as Joelle. After Billy had given Joelle $192, they had an equal amount of money left. How much money did each of them have at first?
- Joelle
- Billy
|
Joelle |
Billy |
Before |
1 u |
5 u |
Change |
+ $192 |
- $192 |
After |
1 u + $192 |
5 u - $192 |
The amounts that Billy and Joelle had in the end are the same.
5 u - 192 = 1 u + 192
5 u - 1 u = 192 + 192
4 u = 384
1 u = 384 ÷ 4 = 96
Amount that Joelle had at first
= 1 u
= $96
Amount that Billy had at first
= 5 u
= 5 x 96
= $480
Answer(s): (a) $96; (b) $480