The feasible region for an LPP is shown in the given figure. Constrai…

From the given graph, the shaded feasible region is bounded by the coordinate axes and two straight lines.

The corner points visible are:

O(0,0), C(0,20), B(20,10), A(25,0)

Equation of line CB through (0,20) and (20,10):

$\frac{y-20}{10-20}=\frac{x-0}{20-0}$

$y= -\frac{1}{2}x+20$

Equation of line BA through (20,10) and (25,0):

$\frac{y-10}{0-10}=\frac{x-20}{25-20}$

$y=-2x+50$

Hence the constraints of the LPP are:

$x \ge 0$

$y \ge 0$

$y \le -\frac{1}{2}x+20$

$y \ge -2x+50$ is NOT included since region lies below this line

$x \le 25$ (from point A)

final answer: The constraints are $x\ge0,\; y\ge0,\; y\le -\frac{1}{2}x+20,\; y\le -2x+50,\; x\le25$