Japheth had $7.90 less than Ian. After Japheth gave $1.60 to Ian, Ian would have four times as much money as Japheth. How much money had Ian at first?
| |
Ian |
Japheth |
| Before |
4 u - $1.60 |
1 u + $1.60 |
| Change |
+ $1.60 |
- $1.60 |
| After |
4 u |
1 u |
Japheth had $7.90 less than Ian. If another $7.90 was given to Japheth, Ian and Japheth would have the same amount at first.
4 u - 1.60 = 1 u + 1.60 + 7.90
4 u - 1 u = 1.60 + 7.90 + 1.60
3 u = 11.10
1 u = 11.10 ÷ 3 = 3.70
Amount that Ian had at first
= 4 u - 1.60
= 4 x 3.70 + 1.60
= 14.80 + 1.60
= $16.40
Answer(s): $16.40
