Kondi and Sons makes 2 types of furniture x1 and x2. The selling price for x1 is 6K per unit while x2 sells for 4K per unit. Two machines are used in the production process, the cutting machine and pinning machine. The cutting machine has a total of 120 hours available and the Pinning machine has a total 60 hours available. Product x1 uses 2 hours on the cutting machine and 2 hours on the pinning machine while x2 needs 3 hours on the cutting machine and 1 hour on pinning machine. 

1. a) Is this a problem in maximization or minimization? 
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3. b) What are the decision variables?
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5. c) What is the objective function? 
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7. d) What are the constraints?
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9. e) Solve the problem using graphical method 
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11. f) Solve the problem using simplex method