Seth had 3 times as much money as John. After John's father gave John $31, the amount of money Seth had become $3 less than that of John's. How much did John have in the end?
| |
John |
Seth |
| Before |
1 u |
3 u |
| Change |
+ $31 |
|
| After |
1 u + $31 |
3 u |
The amount that Seth had remains unchanged.
If Seth had another $3, John and Seth would have the same amount in the end.
3 u + 3 = 1 u + 31
3 u - 1 u = 31 - 3
2 u = 31 - 3
2 u = 28
1 u = 28 ÷ 2 = 14
Amount that John had in the end
= 1 u + 31
= 14 + 31
= $45
Answer(s): $45
