Three men form a corporation Mr.A invests x dollars, Mr.B invests y dollars, Mr.C invests y dollars. What part of $100 profit should Mr.A recieve is each man shares the proft in proportion to the amount that he invested. ?
The total amount of money invested is x + y + y = x + 2y dollars.
Mr. A invested x dollars, so by proportion, the amount of money he invested is x/(x + 2y), so he should get x/(x + 2y) of the profit, which in this case is 100*[x/(x + 2y)] = 100x/(x + 2y) dollars