A manufacturer operates three factories from which items are shipped to four warehouses. Factory to warehouse shipping cost in Rupees quantities available at each of the factories X, Y and Z and the requirements at each of the warehouses A, B, C and D are given in the table below:
Factors
|
Warehouses
|
Quantity
available
|
A
|
B
|
C
|
D
|
X
|
30
|
20
|
50
|
20
|
150
|
Y
|
20
|
10
|
40
|
40
|
240
|
Z
|
20
|
30
|
40
|
30
|
210
|
Quantity
Required
|
130
|
120
|
160
|
190
|
600
|
Determine initial feasible solution by
(i) North-west corner rule and
(ii) Lowest cost entry method