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Question #41685

Difficulty: 8/10 | 🟢 Free

The Question

Consider the linear programming problem: Maximize Z=c1x+c2yZ = c_1 x + c_2 y Subject to the constraints: x≥0,y≥0x \ge 0, y \ge 0 x+λy≤Lx + \lambda y \le L 3x+2y≤153x + 2y \le 15 where c1=2(2412)∑r=012(12r)2c_1 = \frac{2}{\binom{24}{12}} \sum_{r=0}^{12} \binom{12}{r}^2, c2=2(2412)∑r=012r(12r)2c_2 = \frac{2}{\binom{24}{12}} \sum_{r=0}^{12} r \binom{12}{r}^2, and L=lim⁡n→∞∑k=1n40k3n4L = \lim_{n \to \infty} \sum_{k=1}^n \frac{40k^3}{n^4}. If the problem has multiple optimal solutions, what is the maximum value of ZZ?

Options

  • A.

    18

  • B.

    20

  • C.

    24

  • D.

    30

Check Your Answer

Correct Answer

Step-by-Step Solution

Explanation

How the Examiner Thinks

Bridge

Practice problems that bridge the gap between foundational theory and advanced practical application.

Concepts Behind This Question

Multiple Optimal Solutions|Sigma Notation Properties|Binomial Coefficient Summation Properties

Why This Question Is Tricky

Common Mistakes

This question tests the synthesis of combinatorial identities, definite integrals as limits of sums, and linear programming.

The primary trap lies in the evaluation of the binomial summation ∑r(nr)2\sum r \binom{n}{r}^2; students often misapply Vandermonde's identity or fail to absorb the rr term, leading to an incorrect gradient for the objective function.

Consequently, they deduce an incorrect λ\lambda for the multiple optimal solutions condition, yielding a wrong feasible region and maximum value.

Quick Facts About This Question

Question Information

SubjectMathematics
ChapterLinear Programming - Class 12
ConceptMultiple Optimal Solutions
Difficulty8
Cognitive Load7
Target Solve Time160 sec
AccessFree