Peter had $5.60 less than Ben. After Peter gave $1.10 to Ben, Ben would have four times as much money as Peter. How much money had Ben at first?
| |
Ben |
Peter |
| Before |
4 u - $1.10 |
1 u + $1.10 |
| Change |
+ $1.10 |
- $1.10 |
| After |
4 u |
1 u |
Peter had $5.60 less than Ben. If another $5.60 was given to Peter, Ben and Peter would have the same amount at first.
4 u - 1.10 = 1 u + 1.10 + 5.60
4 u - 1 u = 1.10 + 5.60 + 1.10
3 u = 7.80
1 u = 7.80 ÷ 3 = 2.60
Amount that Ben had at first
= 4 u - 1.10
= 4 x 2.60 + 1.10
= 10.40 + 1.10
= $11.50
Answer(s): $11.50
