Jack had 3 times as much money as Zeph. After Zeph's father gave Zeph $20, the amount of money Jack had become $6 less than that of Zeph's. How much did Zeph have in the end?
| |
Zeph |
Jack |
| Before |
1 u |
3 u |
| Change |
+ $20 |
|
| After |
1 u + $20 |
3 u |
The amount that Jack had remains unchanged.
If Jack had another $6, Zeph and Jack would have the same amount in the end.
3 u + 6 = 1 u + 20
3 u - 1 u = 20 - 6
2 u = 20 - 6
2 u = 14
1 u = 14 ÷ 2 = 7
Amount that Zeph had in the end
= 1 u + 20
= 7 + 20
= $27
Answer(s): $27
