Adam and Bryan have $50.
Adam has 4 times as much money as Bryan.
How much must Adam give to Bryan
so Adam will have $40 less than Bryan?
|
Adam |
Bryan |
Total |
Before |
4 u |
1 u |
5 u |
Change |
- ? |
+ ? |
No change |
After |
$5 |
$5 + $40 |
$50 |
At first
Adam = 4 u
Bryan = 1 u
Total = 1 u + 4 u = 5 u
5 u = 50
1 u = 50 ÷ 5 = 10
Amount that Adam has at first
= 4 u
= 4 x 10
= $40
For Adam to have $40 less than Bryan in the end, we need to set aside $40 for Bryan before the remaining amount is divided into 2.
Amount that Adam will have in the end
= (50 - 40) ÷ 2
= 10 ÷ 2
= $5
Amount that Adam gives to Bryan
= Amount that Adam at first - Amount that Adam has in the end
= 40 - 5
= $35
Answer(s): $35