Xavier had 4 times as much money as Warren. After Warren's father gave Warren $21, the amount of money Xavier had become $6 less than that of Warren's. How much did Warren have in the end?
| |
Warren |
Xavier |
| Before |
1 u |
4 u |
| Change |
+ $21 |
|
| After |
1 u + $21 |
4 u |
The amount that Xavier had remains unchanged.
If Xavier had another $6, Warren and Xavier would have the same amount in the end.
4 u + 6 = 1 u + 21
4 u - 1 u = 21 - 6
3 u = 21 - 6
3 u = 15
1 u = 15 ÷ 3 = 5
Amount that Warren had in the end
= 1 u + 21
= 5 + 21
= $26
Answer(s): $26
