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# Quantitative Methods: Operations research models

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True and false

1. In a media selection problem, maximization of audience exposure may not result in maximization of total profit.

2. In an unbalanced transportation model, supply does not equal demand and supply constraints have signs.

3. Due to the unique characteristics of a transportation problem, the solution values of the decision variables are always integer values.

4. In a transportation problem, a demand constraint for a specific destination represents the amount of product demanded by a given destination (customer, retail outlet, store).

5. In maximization linear programming problem profit is maximized in the objective function by subtracting cost from revenue.

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Hello

1. In a media selection problem, maximization of audience exposure may not result in maximization of total profit.

Hint: In media selection problem we look at the efficiency of the particular media i.e. number of audiences reached per dollar spent on that media. So, media selection problem focus on maximizing the output from the advertising expenditure in terms of audience exposure. It assumes that the audience is homogenous in terms of profit. Therefore the statement is true.

2. In an unbalanced transportation model, supply does not equal demand and supply constraints have signs.

Hint: In an unbalanced transportation model, supply and demand are unequal. As far as supply constraints are concerned, it will always have ...

#### Solution Summary

Solution contains answers and explanation of multiple choice questions.

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## Quantitative methods:Operations research, Fill in the blank

Fill in the blank

7. An example of a ________________ point is a distribution center or warehouse located between plants and stores.

8. In the linear programming formulation of the transshipment problem there is one _________ for each node.

9. A plant has 4 jobs to be assigned to 4 machines, each machine has different manufacturing times for each product. The production manager wants to determine the optimal assignments of 4 jobs to 4 machines to minimize total manufacturing time. This problem can be most efficiently solved using the ________________ model.

10. If the number of sources is greater than the number of destinations, then we have an ______________ assignment problem.

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