Rael had $5.80 less than Tom. After Rael gave $1.20 to Tom, Tom would have thrice as much money as Rael. How much money had Tom at first?
| |
Tom |
Rael |
| Before |
3 u - $1.20 |
1 u + $1.20 |
| Change |
+ $1.20 |
- $1.20 |
| After |
3 u |
1 u |
Rael had $5.80 less than Tom. If another $5.80 was given to Rael, Tom and Rael would have the same amount at first.
3 u - 1.20 = 1 u + 1.20 + 5.80
3 u - 1 u = 1.20 + 5.80 + 1.20
2 u = 8.20
1 u = 8.20 ÷ 2 = 4.10
Amount that Tom had at first
= 3 u - 1.20
= 3 x 4.10 + 1.20
= 12.30 + 1.20
= $13.50
Answer(s): $13.50
