Arabica coffee costs $0.4 per ounce while Robusta coffee costs $0.2 per ounce. If the blend of Arabica and Robusta costs $0.33 per ounce, what is the share of Arabica in this blend?  Choose one:
A) 20%	B) 65%	C) 30%	D) 33%	E) 40%
a= amount of arabica coffee   1-a = amount of robusta coffee. because if you subtract a from the 1 ounce, the remaining amount is robusta   therefore:   .4a + .2(1-a) = .33   .4a + .2 - .2a = .33   a= .65   therefore: .65/1 ounce = 65%. Therefore, the answer should be 65%
<result>B</result>
Arabica coffee costs $0.4 per ounce while Robusta coffee costs $0.2 per ounce. If the blend of Arabica and Robusta costs $0.33 per ounce, what is the share of Arabica in this blend?