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In: Statistics and Probability

What is Linear Programming? Give an example of an application of Linear

What is Linear Programming? Give an example of an application of Linear

Solutions

Expert Solution

DEFINITION:

Linear Programming (LP) is a method to achieve the best outcome, such as maximum profit or lowest cost in a Mathematical Model whose requirements are represented by linear relationships.

EXAMPLE OF APPLICATION:

Consider a farmer with:

a piece of farm land = L km2

to be planted with

(i) Wheat or

(ii) Barley.

A limited amount of fertilizer =F kilograms

A limited amount of pesticides = P kilograms

Every square kilometer of Wheat requires: F1 kilograms of Fertilizer and P1 kilogram of pesticides.

Every square kilometer of Barley requires: F2 kilograms of Fertilizers and P2 kilograms ofpesticides.

Let

S1 = Selling price of Wheat per square kilomter

S2 = Selling price ofBarley per square kilometer.

Let

x1 = area of land planted by Wheat

x2 = area of land planted by Barley

Then, Profit is maximized by choosing optimal values of x1 and x2.

This is written as a Linear Programming as follows:

Maximize:
R = S1 x1 + S2 x2 (MaximizeObjective Function: Revenue)

Subject to Linear Constraints:

x1+x2 L (Limit on Total Area)

F1 x1 + F2 x2 F (Limit on Fertilizer)

P1 x1 + P2 x2 P (Limit on Pesticide)

x1 0,   x2 0 (Non - negativity contraints)


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