Bobby had $3.40 less than Fred. After Bobby gave $1.10 to Fred, Fred would have thrice as much money as Bobby. How much money had Fred at first?
| |
Fred |
Bobby |
| Before |
3 u - $1.10 |
1 u + $1.10 |
| Change |
+ $1.10 |
- $1.10 |
| After |
3 u |
1 u |
Bobby had $3.40 less than Fred. If another $3.40 was given to Bobby, Fred and Bobby would have the same amount at first.
3 u - 1.10 = 1 u + 1.10 + 3.40
3 u - 1 u = 1.10 + 3.40 + 1.10
2 u = 5.60
1 u = 5.60 ÷ 2 = 2.80
Amount that Fred had at first
= 3 u - 1.10
= 3 x 2.80 + 1.10
= 8.40 + 1.10
= $9.50
Answer(s): $9.50
