We have 210000 euros to invest in the stock market. We are recommended two types of shares. Type A shares yielding 10% and type B shares yielding 8%. We decide to invest a maximum of 130,000 euros in type A shares and, as a minimum, 6,000 euros in type B. In addition, we want the investment in type A to be less than or equal to twice as much as the investment in type A. A should be less than or equal to twice the investment in B. What should be the distribution of the investment to obtain maximum annual interest? annual interest?

	------- Anillo deslizante -------
Nmero a	Modelo 1	Modelo 2	Modelo 3
Hacer	0	0	0
Comprar	0	0	0
Coste de
Hacer	$50	$83	$130	Coste total
Comprar	$61	$97	$145	$0
# Disponibles	0	0	0
# Necesarios	3,000	2,000	900
Horas requeridas				Usados	Disponibles
Cableado	2	1.5	3	0	10,000
Aprovechamiento	1	2	1	0	5,000