Hi
I have one problem

Trucks production company must produce 1000 trucks. Company has four factories. The cost of truck production (raw materials, work) in each separate factory is shown in table:
HTML Code:
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|Factory |Cost x 10^3 |Work |Raw materials |
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|1 |15 |2 |3 |
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|2 |10 |3 |4 |
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|3 |9 |4 |5 |
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|4 |7 |5 |6 |
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Automaker trade union requires that at least 400 trucks should be made in 3rd factory. It was given 3300 work hours and 4000 pcs. raw materials to each factory for order lead time. Make linear programming problem which minimize the cost of 1000 trucks production.
Can anyone help me to express the objective function and the constraints??