MERITS OF LPP :

1. Helps management to make efficient use of resources. 

2. Provides quality in decision making. 

3. Excellent tools for adjusting to meet changing demands. 

4. Fast determination of the solution if a computer is used. 

5. Provides a natural sensitivity analysis. 

6. Finds solution to problems with a very large or infinite number of possible solution. 


DEMERITS OF LPP :

1. Existence of non-linear equation: The primary requirements of Linear Programming is the objective function and constraint function should be linear. Practically linear relationship do not exist in all cases. 

2. Interaction between variables: LP fails in a situation where non-linearity in the equation emerge due to joint interaction between some of the activities like total effectiveness. 

3. Fractional Value: In LPP fractional values are permitted for the decision variable. 

4. Knowledge of Coefficients of the equation: It may not be possible to state all coefficients in the objective function and constraints with certainty.