Target Exam

CUET

Subject

-- Applied Mathematics - Section B2

Chapter

Linear Programming

Question:

Feasible region (shaded) for a LPP is shown in Figure. Maximise $Z = 5x + 7y$.

Options:

43

40

49

53

Correct Answer:

43

Explanation:

The correct answer is Option (1) → 43

Given Maximise $Z = 5x + 7y$

As shown in the figure OABC is the feasible region whose corner points are O(0, 0), A(7, 0), B(3, 4) and C(0, 2) Evaluating the value of Z, we get

Corner points

Value of Z

O(0, 0)

$Z=5(0)+7(0)=0$

A(7, 0)

$Z=5(7)+7(0)=35$

B(3, 4)

$Z=5(3)+7(4)=43$ ← Maximum

C(0, 2)

$Z=5(0)+7(2)=14$

Hence, the maximum value of Z is 43 at (3, 4).