CUET · MATHS · PYQ PAPER 2025
For the objective function \(Z = 3x + 5y\) subject to constraints \(x + 3y ≥ 3, x + y ≥ 2, x ≥ 0, y ≥ 0\):
- A there exists only maximum value of Z
- B there exists only minimum value of Z
- C there exists both maximum and minimum values of Z
- D there is neither maximum value nor minimum value of Z
Answer & Solution
Correct Answer
(B) there exists only minimum value of Z
Step-by-step Solution
Detailed explanation
Vertices of feasible region: \( x+y=2 \Rightarrow x=2-y \) \( (2-y)+3y=3 \Rightarrow 2y=1 \Rightarrow y=0.5 \) \( x=2-0.5=1.5 \) Vertex: \( (1.5, 0.5) \) For \( x=0 \): \( 3y \ge 3, y \ge 2 \Rightarrow y=2 \). Vertex: \( (0,2) \) For \( y=0 \):…
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