Consider the LPP,
Max z = 2x + 3y, subject to the conditions,
x + y ≤ 2,
x ≤ 2
x ≥ 0 ; y ≥ 0, then maximum value of the objective function is :
Answer & explanation
Correct answer: option 2
$x \geq 0, y \geq 0$
$x \leq 2$
$x+y \leq 2$
Function to be maximised
Z = 2x + 3y
x ≥ 0, y ≥ 0
solution is in first quadrant
plotting for x + y = 2
| x | 0 | 2 |
| y | 2 | 0 |
now checking for (0, 0) in x + y ≤ 2
0 ≤ 2
solution lies in part containing (0, 0) below line
corner points obtained
→ A (0, 0)
B (0, 2)
C (2, 0)
Z (x, y) = 2x + 3y
Z(0, 0) = 2(0) + 3(0) = 0
Z (0, 2) = 2(0) + 3(2)
= 0 + 6 = 6
Z (2, 0) = 2(2) + 3(0)
= 4 + 0 = 4
for (B (0, 2))
Z is maximum
Zmax = 6