Transportation problem
Q1. Solve the following transportation problems and find the optimum transportation cost data.
 Warehouse/Store        S1               S2              S3            S4              Demand
 W1                     9                7               10            8               14
 W2                     8                11              9             11              27
 W3                     13               10              12            10              14
 Requirement            15               19              11            10              55/55
Q2. A company has received a contract to supply gravel for three construction projects in
Kathmandu, Pokhara, and Birgunj. The gravel will be transported from three supply pits labeled
X, Y, and Z. Construction engineers have estimated the required quantities of gravel at each
project site, and the available supply at each pit is known. The transportation cost per unit (in
NPR) from each pit to each project location is given in the table below:
 Pit/Project Location        Kathmandu         Pokhara          Birjung             Supply
 X                           4                 8                8                   76
 Y                           16                24               16                  82
 Z                           8                 16               24                  77
 Demand                      72                102              41                  215/235
    Develop an optimal transportation schedule that minimizes the total transportation cost
     while satisfying all supply and demand constraints.
    Determine the total transportation cost based on your schedule.
    Assess whether the transportation cost is optimal using an appropriate method.
Q3. Solve the following transportation problems and find the optimum transportation cost.
 From/To                Kathmandu             Pokhara          Nepaljung            Plant Capacity
 Factory 1              4                     8                8                    55
 Factory 2              16                    24               16                   25
 Factory 3              8                     16               24                   35
 Requirement            35                    45               35                   115/115
Q4. Determine the minimum transport cost from the following data.
 Warehouse/Store        P1               P2              P3            P4              Plant Capacity
 W1                     45               60              45            30              70
 W2                     35               15              35            35              60
 W3                     30               25              45            55              90
 Requirement            60               40              60            20              180/220
Q5. A company has 3 warehouses and needs to supply cement to 4 different locations in the
country. The transportation cost per ton from warehouses to different locations is given below.
 Pit/Project        Kathmandu       Pokhara         Birjung         Surkhet            Supply
 Location
 Wahrehouse1        3               2               7               6                  5000
 Wahrehouse2        7               5               2               3                  6000
 Wahrehouse3        2               5               4               5                  2500
 Demand             6000            4000            2000            1500               13500
   a) What will be the transportation cost?
   b) Assess whether the transportation cost is optimal using an appropriate method.