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Provide Solution for RD Sharma Class 12 Chapter 29 Linear Programming Exercise 29.4 Question 46

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Answer: Therefore, 800 units of doll A and 400 units of doll B should be produced weekly to get the maximum profit of Rs.16000

Hint:

Use properties of LPP

Given:

A toy company manufacturers two types of dolls A and B and if the company makes profit of Rs.12 and Rs.16 per doll respectively.

Solution:

Let x units of doll A and y units of doll B are manufactured to obtain the maximum profit.

The mathematical formulation of the above problem as follows.

Maximize Z = 12x + 16y

Subject to

                                    \begin{aligned} &x+y \leq 1200 \\ &y \leq \frac{x}{2} \\ &x-3 y \leq 600 \\ &x, y \geq 0 \end{aligned}

                                      

                                                                                                  

The shaded region represents the set of feasible solutions.

The coordinates of the corner points of the feasible region are O(0,0), A(800,400), B(1050,150) and C(600,0)

                =12(0) + 16(0) = 0            

The value of Z at A(800,400)

                =12(800) + 16(400) = 16000

Maximum value of Z at B(1020,150)

                =12(1050) + 16(150) = 15000

The value of Z at C(600,0)

                =12(600) + 6(0) = 7200

Therefore, 800 units of doll A and 400 units of doll B should be produced weekly to get the maximum profit of Rs.16000.

 

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