Question

Each coffee table produced by Home Woods nets the firm a profit of $15. Each bookcase...

Each coffee table produced by Home Woods nets the firm a profit of $15. Each bookcase yields a $20 profit. Home Wood’s firm is small and its resources limited. During any given production period (of 1 week), 20 gallons of varnish and 15 lengths of high quality redwood are available. Each coffee table requires approximately 2 gallon of varnish and 1 length of redwood. Each bookcase takes 1 gallon of varnish and 2 lengths of wood. Assume minimum 4 coffee table and 5 bookcases should be produced per week.

Formulate this manufacturing problem and then find the optimal solution.

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Answer #1

Since the objective is to maximise the profit, the objective function is

Max (15X+20Y)

where X and Y are the number of coffee table and bookcase manufactured respectively.

Constraints

2X+y<=20

X+2y<=15

X=>4

Y=>5

The points of optimality are ( 4,5.5)(5,5) (4,12) and (7.5,5)

52 20 Y La S Slo

Value of objective function

at (4,5) = 160

at(5,5) =175

at(4,12) = 300

at(7,5) =205

The most optimal value is X=4, Y=12 with output of 300

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