Oliver had thrice as much money as Winnie. After Oliver had given Winnie $151, they had an equal amount of money left. How much money did each of them have at first?
- Winnie
- Oliver
|
Winnie |
Oliver |
Before |
1 u |
3 u |
Change |
+ $151 |
- $151 |
After |
1 u + $151 |
3 u - $151 |
The amounts that Oliver and Winnie had in the end are the same.
3 u - 151 = 1 u + 151
3 u - 1 u = 151 + 151
2 u = 302
1 u = 302 ÷ 2 = 151
Amount that Winnie had at first
= 1 u
= $151
Amount that Oliver had at first
= 3 u
= 3 x 151
= $453
Answer(s): (a) $151; (b) $453