Q1.Find the IBFS for the following TP by VAM.
D1 D2 D3 D4 Supply
O1 11 13 17 14 250
O2 16 18 14 10 300
O3 21 24 13 10 400
Demand 200 225 275 250
Soln:
STEP I:
The given TP is a balanced one. Since Eai=Ebj=950.Therefore there exists a Feasible Solution.
STEP II:
Calculate Penalty (The difference between the Smallest and next smallest cost in each row and column).
D1 D2 D3 D4 Supply P1
------------------------
200
O111 13 17 14 250 2(13-11)
O216 18 14 10 300 4
O321 24 13 10 400 3
200 225 275 250
P2 5 5 1 0
Among the Penalty calculated Select the highest value and choose the cell which has the lowest cost.
P1
50
13 17 14 250 1(14-13)
18 14 10 300 4
24 13 10 400 3
225 275 250
5 1 0 P2
Similarly if we calculate the final one will be
125
10 250
125
Solution is given by
200 50
11 13 17 14
175 125
16 18 14 10
275 125
21 24 13 10
The values are independent ie., the number of closed cycles is m+n-1=3+4-1=6
There are six positive independent allocation which equals to m+n-1=6.This ensures that the solution is non-degenerate Basic Feasible solution.
Transportation Cost=(11 x 200)+(13 x 50)+(18 x 175)+(10 x 125)+(13 x 275)+( 10 X 125)
=Rs.12075
D1 D2 D3 D4 Supply
O1 11 13 17 14 250
O2 16 18 14 10 300
O3 21 24 13 10 400
Demand 200 225 275 250
Soln:
STEP I:
The given TP is a balanced one. Since Eai=Ebj=950.Therefore there exists a Feasible Solution.
STEP II:
Calculate Penalty (The difference between the Smallest and next smallest cost in each row and column).
D1 D2 D3 D4 Supply P1
------------------------
200
O1
O2
O3
P2
Among the Penalty calculated Select the highest value and choose the cell which has the lowest cost.
P1
50
18 14 10 300 4
24 13 10 400 3
225 275 250
5 1 0 P2
Similarly if we calculate the final one will be
125
200 50
11 13 17 14
175 125
16 18 14 10
275 125
21 24 13 10
The values are independent ie., the number of closed cycles is m+n-1=3+4-1=6
There are six positive independent allocation which equals to m+n-1=6.This ensures that the solution is non-degenerate Basic Feasible solution.
Transportation Cost=(11 x 200)+(13 x 50)+(18 x 175)+(10 x 125)+(13 x 275)+( 10 X 125)
=Rs.12075
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