In a portfolio problem X1 X2 and X3 represent the number of

In a portfolio problem, X1, X2, and X3 represent the number of shares purchased of stocks 1, 2, an 3 which have selling prices of $15, $47.25, and $110, respectively. The investor has up to $50,000 to invest. An appropriate part of the model would be

Solution

15X₁ +47.25X₂ + 110X₃ <= 50000

X1 +X2+X3= n (total number of shares purchased