In the refinery situation of Problem 5,suppose that the distillation unit actually produces
the intermediate products naphtha and light oil. One bbl of crude A produces.35 bbl of
naphtha and .6 bbl oflight oil, and one bbl of crude B produces.45 bbl of naphtha and
.5 bbl oflight oil. Naphtha and light oil are blended to produce the three final gasoline
products: One bbl of regular gasoline has a blend ratio of 2:1 (naphtha to light oil), one
bbl of premium gasoline has a blend ratio ofratio of 1:1, and one bbl ofjet fuel has a
blend ratio of 1:2. Determine the optimal production mix