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Inventory models deal with the problem of determination of how much to order at a point in time and when to place an order. The main objective is to minimize the sum of three conflicting inventory costs. the cost of holding or carrying extra inventory the cost of shortage or delay in the delivery of items when it is needed a cost of ordering or setup. These are also useful in dealing with quantity discounts and selective inventory control.
Tied Ranks Equal or Repeated Rank When two or more items have equal values it is difficult to give ranks to them. In that case the items are given the average of the
Q2. Six Operators are to be assigned to five jobs with the cost of assignment in Rs. given in the matrix below. Determine the optimal assignment. Which operator will have no assign
write down any two assumption of L.P
Problems based on LPP when feasible region is a line segment or it does not exist. 1. Maximize z = 2x+3y subject to the constraints X + y ≤ 1 X + y ≥ 3 X, y ≥ 0
Techniques of Observation Method Observation always involves some interaction between respondent and researcher in which researcher has an opportunity to watch respondent fu
Meaning and Definition If a group of N observations is arranged in ascending or descending order of magnitude then the middle value is called median of these observat
A company uses 4 pounds of resource 1 to make each unit of X1 and 3 pounds of resource 1 to make each unit of X2. There are only 150 pounds of resource 1 available. Which of the fo
With practical example
High Costs are Involved in the Use of O. R Techniques: O. R techniques usually prove very expensive. Services of specialized persons are invariably called for ( and along w
describe the problems of operation management
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