Gabriel and Christian shared $80 equally. How much money must Gabriel give to Christian so that Christian will have three times as much money as Gabriel?
| |
Gabriel |
Christian |
Total |
| Before |
40 |
40 |
80 |
| Change |
- 20 |
+ 20 |
|
| After |
1 u |
3 u |
80 |
Amount that each of them had at first
= 80 ÷ 2
= $40
Amount that Gabriel had = 1 u
Amount that Christian had = 3 u
Total amount that Gabriel and Christian
= 1 u + 3 u
= 4 u
4 u = 80
1 u = 80 ÷ 4 = 20
Amount that Gabriel must give to Christian
= 40 - 20
= $20
Answer(s): $20
