CUET · MATHS · PYQ PAPER 2023

If the corner points of Linear Programming Problem having objective function \(\operatorname{Max} z=2 x+y\) are \(O(0,0), A(30,0), B(20,30), C(0,50)\), then the optimal value will be at the point :

Verified Solution

Answer & Solution

Correct Answer

(C) B

Step-by-step Solution

Detailed explanation

\( z(O) = 2(0) + 0 = 0 \) \( z(A) = 2(30) + 0 = 60 \) \( z(B) = 2(20) + 30 = 70 \) \( z(C) = 2(0) + 50 = 50 \) Optimal value is at \( B \)

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

Same subject

Find the area of the region bounded by the two parabolas \(y=x^2\) and \(y^2=x\) :

CUET 2023 Easy

Match List - I with List - II.

List - I	List - II
(A) \(\int_{-1}^1\|x\| d x\)	(I) 0
(B) \(\int_{-\pi / 2}^{\pi / 2} \sin x d x\)	(II) 2
(C) \(\quad \int_{-\pi / 2}^{\pi / 2} \cos x d x\)	(III) \(\pi / 4\)
(D) \(\quad \int_0^{\pi / 2} \sin ^2 x d x\)	(IV) 1

Choose the correct option from the ones given below :

CUET 2023 Medium

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