No. of desktop computer be x and no. of portable be y Maximize
∴ Z = 4500 x + 5000 y
subject to x + y ≤ 250
25000 x + 4000y ≤ 70,00,000
or 5x + 8y ≤ 1400, x ≥ 0, y
The corner points are.
0 (0,0), B (250,0), C (200,50), D (0,175)
At 0, Z = 0
At C Z = 1150000
B Z= 1125000
D Z = 875000
Maximum of C (200, 50)
∴ No. of desktop model = 200
No. of portable = 50