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Operations Research




                    Notes          14.  A company dealing in home appliances has a sales force of 20 men who operate from three
                                       distribution centers. The sales manager feels  that 5  salesmen are needed to  distribute
                                       product line I,  6 to distribute product  line II, 5 for product line III and 4 to distribute
                                       product line IV. The cost (in `) per day of assigning salesmen from each of the offices are
                                       as follows:
                                                                       Product Line
                                                                I           II         III         IV
                                                    A           10          12         13          9
                                        Source      B           9           11         12          13
                                                    C           7           8           9          10
                                       Currently, 8 salesmen are available at center A, 5 at center B and 7 at center C. How many
                                       salesmen should be assigned from each center to sell each product line, in order to minimize
                                       the cost? Is the solution unique?
                                   15.  Solve the following degenerate transportation problem:

                                                                        Destination
                                                                 I          II         III       Supply
                                                    A           7           3          4           2
                                        Source      B           2           1          3           3
                                                    C           3           4          6           5
                                                  Demand        4           1          5

                                   Answers: Self  Assessment

                                   1.  False                             2.   False
                                   3.  False                             4.   False

                                   5.  False                             6.   True
                                   7.  False                             8.   True
                                   9.  Two                               10.  Lowest

                                   11.  Degeneracy
                                   5.12 Further Readings





                                   Books       G Dantzig, Linear Programming and Extensions, Princeton University Press.
                                               G Dantzig, M N Thapa, Linear Programming 2: Theory and Extensions, Princeton
                                               University Press.

                                               Robert J. Vanderbei, Linear Programming: Foundations and Extensions,  Princeton
                                               University Press.
                                               S Jaisanker, Quantitative Techniques for Management, Excel Books.




                                   Online links  www.adbook.net
                                               www.mathresources.com




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