How Much of the Seven 50 Should Anjou and Barrat Get?

Anjou has five thousand dollars to invest, which he can earn one %, or 50 dollars. Barrat has 20 thousand dollars to investment, on which he can earning two %, or 400 dollars. If they combine their funds, they'll have 25 thousand dollars to invested, on which they can earn three %, or 700 an 50 dollars. The most common response is that barrat has put in four times as much money as anju, so therefore he should get four times asmuch. That's what aristotle would say, and that is the most common response out there.