industrial engineering question pls answer

1. a) A multi-national company KOTA PRINT PVT LTD produces 3 models of PRINTERS Printer Models KP10 KP20 KP30 Total $. $. $. $. Sales 1,50,000 90,000 60,000 Variable Cost 1, 20,000 63,000 36,000 Contribution 30,000 27,000 24,000 Fixed Cost 40, 500 Find out the product - mix so as to maximize the profit of the company. (15) b) Explain various costs associated with a Manufacturing Organization with one example each and derive MRP from these costs