Vincent had three times as much money as David. After Vincent spent $130 and David spent $28, they had the same amount of money left.
- How much did David have at first?
- How much had each of them left in the end?
|
Vincent |
David |
Before |
3 u |
1 u |
Change |
- 130 |
- 28 |
After |
3 u - 130 |
1 u - 28 |
The amounts that Vincent and David had left in the end is the same.
3 u - 130 = 1 u - 28
3 u - 1 u = 130 - 28
2 u = 102
1 u = 102 ÷ 2 = 51
Amount that David had at first
= 1 u
= $51
(a)
Amount that each of them had in the end
= 51 - 28
= $23
Answer(s): (a) $51; (b) $23