Kenton Coffee Roasters blends three types of coffee beans (Brazilian, Colombian, and Peruvian) into ground coffee that is sold at retail. Each kind of bean has a distinctive aroma and taste, and the company has a chief taster who can rate the fragrance of the aroma and the strength of the taste on a scale of 1-100. The features of the beans are stated below.

	Aroma Rating	Strength Rating	Cost/Pound ($)	Pounds Available
Brazilian	75	15	3.55	1500
Colombian	60	20	4.26	1200
Peruvian	85	18	4.97	2000

Kenton would like to create a blend that has an aroma rating of at least 78 and a strength rating of at least 16. Using the available coffee Kenton wants to create 4000 pounds of blended coffee with the fragrance and taste ratings stated at the lowest possible cost.