question archive The New England Cheese Company produces two cheese spreads by blending mild cheddar cheese with extra sharp cheddar cheese
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The New England Cheese Company produces two cheese spreads by blending mild cheddar cheese with extra sharp cheddar cheese. The cheese spreads are packaged in 12-ounce containers, which are then sold to distributors throughout the Northeast. The Regular blend contains 65% mild cheddar and 35% extra sharp, and the Zesty blend contains 75% mild cheddar and 25% extra sharp. This year, a local dairy cooperative offered to provide up to 8100 pounds of mild cheddar cheese for $1.30 per pound and up to 3500 pounds of extra sharp cheddar cheese for $1.50 per pound. The cost to blend and package the cheese spreads, excluding the cost of the cheese, is $0.30 per container. If each container of Regular is sold for $1.80 and each container of Zesty is sold for $2.10, how many containers of Regular and Zesty should New England Cheese produce? Do not round your interim computations. If required, round your answers to the nearest whole number.
Let R=
number of containers of Regular
Z =
number of containers of Zesty
Optimal Solution: R = , Z = , profit = $ .
Answer:
Let R= number of containers of Regular
Z =number of containers of Zesty.
Note that, as the containers are of 12 ounces so,
Cost to produce Regular cheese spreads per container = (0.65*$1.30+0.35*$1.50)*0.75+$0.30
= $1.3275
Cost to produce Zesty cheese spreads per container = (0.75*$1.30+0.25*$1.50) *0.75+$0.30
= $1.3125
Then the LPP can be formulated as follows,
Maximize P = $(1.80-1.3275)*R + $(2.10-1.3125)*Z
Subject to,
0.65*0.75*R + 0.75*0.75*Z ≤ 8100
0.35*0.75*R + 0.25*0.75*Z ≤ 3500
R, Z ≥ 0
This can be rewritten as,
Maximize P = 0.4725*R + 0.7875*Z
Subject to,
0.4875*R + 0.5625*Z ≤ 8100
0.2625*R + 0.1875*Z ≤ 3500
R, Z ≥ 0
Using the solver found at http://simplex.tode.cz/
Optimal Solution: R = 0 , Z = 14400, profit = $11340.