Determine all the constraints. Briefly describe what each constraint represents. A logistics specialist for Charm City Inc. must distribute cases of parts from 3 factories to 3 assembly plants.

Determine all the constraints. Briefly describe what each constraint represents.
A logistics specialist for Charm City Inc. must distribute cases of parts from 3 factories to 3 assembly plants.

The monthly supplies and demands, along with the per-case transportation costs are:

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Assembly Plant

1 2 3 Supply

__________________________________________________________________

A 6 10 14 200

Factory B 2 2 6 400

C 2 8 7 200

__________________________________________________________________

Demand 220 320 200

The specialist wants to distribute at least 100 cases of parts from factory B to assembly plant 2.

(a) Formulate a linear programming problem to minimize total cost for this transportation problem.

(b) Solve the linear programming formulation from part (a) by using either Excel or QM for Windows. Find and interpret the optimal solution and optimal value. Please also include the computer output with your submission.

The following questions are mathematical modeling questions. Please answer by defining decision variables, objective function, and all the constraints. Write all details of the formulation. Please do NOT solve the problems after formulating.

A congressman’s district has recently been allocated $45 million for projects. The congressman has decided to allocate the money to four ongoing projects. However, the congressman wants to allocate the money in a way that will gain him the most votes in the upcoming election. The details of the four projects and votes per dollar for each project are given below.

Project Votes/dollar

________________________

Parks 0.07

Education 0.08

Roads 0.09

Health Care 0.11

Family Welfare 0.08

In order to also satisfy some local influential citizens, he must meet the following guidelines.

– None of the projects can receive more than 30% of the total allocation.

– The amount allocated to education cannot exceed the amount allocated to health care.

– The amount allocated to roads must be equal to or more than the amount spent on parks.

– All of the money must be allocated.

Formulate a linear programming model for the above situation by determining

(a) The decision variables

(b) Determine the objective function. What does it represent?

(c) Determine all the constraints. Briefly describe what each constraint represents.

Explanation & Answer

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