Question
Solve the following linear programming problem using graphical method. Maximize $Z=60 x+40 y$, Under the constraints
$
\begin{array}{l}
x+2 y \leq 12 \\
2 x+y \leq 12 \\
x+\frac{5}{4} y \geq 5 ; x \geq 0, y \geq 0
\end{array}
$
$
\begin{array}{l}
x+2 y \leq 12 \\
2 x+y \leq 12 \\
x+\frac{5}{4} y \geq 5 ; x \geq 0, y \geq 0
\end{array}
$