E10-9 Time allowed: 20 minutes Troy Engines Ltd manufactures a variety of engines for use in heavy equipment. The company has always produced all of the necessary parts for its engines, including all of the carburettors. An outside supplier has offered to produce and sell one type of carburettor to Troy Engines for a cost of 35 per unit. To evaluate E10-9 Time allowed: 20 minutes Troy Engines Ltd manufactures a variety of engines for use in heavy equipment. The company has always produced all of the necessary parts for its engines, including all of the carburettors. An outside supplier has offered to produce and sell one type of carburettor to Troy Engines for a cost of 35 per unit. To evaluate