A firm manufactures two products, each of which must be processed through cutting and finishing departments. The information for the two goods are represented in the table below: Good Type 1 and 2  Good 1 Cutting of material 3 hours per unit  Finishing   4 hours per unit  Profit Margins R5 per unit  Good 2  Cutting of material  4 h per unit Finishing  6 h per unit Profit Margins  R6 per unit Total cutting of material 120 hours  Total finishing 260 h ours (a) Write down the constraints or inequalities.  (b) Write down the objective function. (c) Sketch the graphs of inequalities and shade the feasible region.  (d) How many types of each good should be manufactured to maximize profit.

ENGR.ECONOMIC ANALYSIS
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Author:NEWNAN
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Chapter1: Making Economics Decisions
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A firm manufactures two products, each of which must be processed through cutting and

finishing departments. The information for the two goods are represented in the table

below:

Good Type 1 and 2 

Good 1

Cutting of material

3 hours per unit 

Finishing  

4 hours per unit 

Profit Margins

R5 per unit 

Good 2 

Cutting of material 

4 h per unit

Finishing 

6 h per unit

Profit Margins 

R6 per unit

Total cutting of material 120 hours 

Total finishing 260 h ours

(a) Write down the constraints or inequalities. 

(b) Write down the objective function.

(c) Sketch the graphs of inequalities and shade the feasible region. 

(d) How many types of each good should be manufactured to maximize profit. 

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