1. A cap manufacturer produces two types of caps. The labor time required for the first type of beret is twice as much as the second type. If only the second type of cap is produced, the company can produce 400 pieces per day, and the market share of these caps is 150 per day for the first type and 200 per day for the second type. Profit from the first type of beret is 8 pb/beret, and profit from the second type of beret is 5 pb/beret. 
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3. A ) Determine how much of each type of cap should be produced using the graphical solution method. (10p) 
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5. B ) Write the dual model of the problem.