Note: This problem requires the use of a linear programming application such as Solver or Analyic Solver.

application such

$s.t.150x_1+200x_2+225x_3+175x_{4}500[Constraint1]$

$x_1+x_2+x_3+x_{4}2(Constraint2)$

$x_2+x_{4}1($Constraint $3)$

$x_2+x_{3}1($Constraint $4\}$

$x_1=x_4($Constraint $5)$

$2^{\text{a}\text{l}\text{i}\text{n}\text{g}\text{e}}$

Set up the problem in Excel and find the optimal solution. What is the expected net present value of the optinal soltion?

$210$

$220$

$235$

$310$

$435$