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Among other limitations of O. R the followings deserve mention:
a. Basis: The operational researchers must be unbiased. An attempt to shoehorn result sin to a confirmation of management prior preferences can greatly increase the likelihood of failure.
b. Inadequate Objective Functions: The use of a single objective functions is often an insufficient basis for decisions. Laws regulations public relations market strategies etc. May all serve to overrule a choice arrived at in this way.
c. Internal Resistance: The implementation an optimal decision may also confront internal obstacles such as tribe unions or individual managers with strong preferences for other ways of doing the job.
d. Competence: Competent O. R analysis calls for the careful specifications of alternatives a full comprehension of the underlying mathematical relationship and a huge mass, of data. Formulation of an industrial problem to an O. R set programme is quite often a difficult task.
e. Reliability of the Prepared Solution : At times a non linear relationship is changed to linear for fitting the problem to L. P pattern. This may disturb the solution.
b. A paper mill produces two grades of paper viz., X and Y. Because of raw material restrictions, it cannot produce more than 400 tons of grade X paper and 300 tons of grade Y pape
. A paper mill produces two grades of paper viz., X and Y. Because of raw material restrictions, it cannot produce more than 400 tons of grade X paper and 300 tons of grade Y pape
ANSWER OF ACTIVITY WITH THEIR PRECEDING ACTIVITY AND DURATION OF TIME IN WEEKS?
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Solve by simplex method Maximize Z = 5x 1 + 3x 2 Subject to 3x 1 + 5x 2 ≤ 15 5x 1 + 2x 2 ≤ 10 & x 1 ≥ 0, x 2 ≥ 0 [Ans. Max Z = 235/19
A paper mill produces two grades of paper viz X and Y. Because of raw material restrictions, it cannot produce more than 400 tons of grade X paper and 300 tons of grade Y paper in
The scientific methods is thus based on certain basic postulate which can be stated as under: a. It relies on empirical evidence: b. It utilizes relevant concepts;
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