## 31. ______________ may be defined as a method of determining an optimum programme inter dependent activities in view of available resources.

## 32. ________ are expressed is n the form of inequities or equations.

## 33. If there are more than one optimum solution for the decision variable the solution is ___________.

## 34. Dual of the dual is ______________.

## 35. Operations Research approach is __________

## 36. For analyzing the problem , decision – makers should normally study.

## 37. Decision variables are __________

## 38. The issue of decision models.

## 39. _____________ is one of the fundamental combinatorial optimization problems.

## 40. An optimization model.

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