Question

Solve the LPP graphically Maximise and minimisc \( z=3 x+9 y \) Subject to the contraints \[ \begin{array}{l} x+3 y \leqslant 60 \\ x+y \geq 10 \\ x \leqslant y \\ x \geq 0 \text { and } y \geq 0 \end{array} \]

Answer 1

Maximum z =180; Minimum z = 60