Home Maths Matrices and Determinants General A and B are two given matrices such that the…
Maths Matrices and Determinants General Single Correct MCQ
Published on: August 13, 2026

A and B are two given matrices such that the order of A is 3 × 4, If A ′ B and BA ′ are both defined then:

A
Order of B ′ is 3 × 4
B
Order of B ′ A is 4 × 4
C
Order of B ′ A is 3 × 3
D
B ′ A is not defined

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The correct answer is:
B

Let order of B is m × n

 A ′ B is define so m = 3

∴ BA ′ is define so n = 4

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