Q. 8

A small firm manufactures necklace and bracelets. The total number of necklace and bracelet that it can handle per day is at most 24. It takes 1 hour to make a bracelet and half an hour to make a necklace. The maximum number of hours available per day is 16. If the profit on a necklace is 100 and that on a bracelet is 300, how many of each should be produced daily to maximize the profit? It is being given that at least one of each must be produced.

Answer :


Let the firm manufacture x number of necklaces and y number of bracelets a day.


According to the question,


X + y , 0.5x + y x


Maximize Z = 100x + 300y


The feasible region determined by X + y , 0.5x + y xis given by



The corner points of the feasible region are A(1,1) , B(1,15.5) , C(16,8) , D(23,1).The number of bracelets should be whole number. Therefore, considering point (2,15). The value of Z at corner point is



The maximum value of Z is 4700 at point B(2,15).


The firm should make 2 necklaces and 15 bracelets.


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