Industrial Engineering and Production Management
Which of the following conditions are necessary for applying linear programming?

These must be a well defined objective function.
All of these
The resources must be in limited supply.
The decision variables should be interrelated and nonnegative.

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Industrial Engineering and Production Management
The assumption in PERT is

Cost of project will always be more than the estimated cost, if no timely corrections are taken
Activities are fixed and can't be changed
A project can be subdivided into a set of predictable, independent activities
A project will always be behind schedule, if left uncorrected

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