A firm manufactures two types of shafts A and B. For any month it must produce 250 shafts A and 100 shafts B. The maximum total requirement of shafts A and B is 1,250 and minimum total requirement is 500. Both shafts are to be processed on machines M1 and M2. Total number of machines M1 and M2 available are 15 each. Processing times in hours for each shaft on machines M1 and M2 are as follows:   A B M1 1.5 2 M2 1 1.5 Profit/unit (K) 400 600 If the firm has 25 working days a month, each of 8 hours, Formulate the linear programming model for the problem. Solve the problem by graphical method.

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ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
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  • A firm manufactures two types of shafts A and B. For any month it must produce 250 shafts A and 100 shafts B. The maximum total requirement of shafts A and B is 1,250 and minimum total requirement is 500. Both shafts are to be processed on machines M1 and M2. Total number of machines M1 and M2 available are 15 each. Processing times in hours for each shaft on machines M1 and M2 are as follows:

 

A

B

M1

1.5

2

M2

1

1.5

Profit/unit (K)

400

600

If the firm has 25 working days a month, each of 8 hours,

  1. Formulate the linear programming model for the problem.
  2. Solve the problem by graphical method.
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