Multiple Choice Questions on If A is a 2 x 3matrix and AB is a 2 x 5 matrix then B must be a ........ for NDA Exam Preparation

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Multiple Choice Questions

If A is a 2 x 3matrix and AB is a 2 x 5 matrix then B must be a ........

Mathematics (NDA) Matrices and Determinants
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    If A is a 2 x 3matrix and AB is a 2 x 5 matrix, then B must be a

    3 x 5 matrix

    Correct Answer

     5 x3 matrix

    Incorrect Answer

    3 x 2 matrix

    Incorrect Answer

    5 x 2 matrix

    Incorrect Answer
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    Explanation:

    (A)(2×3)×(B)(3×5)=(AB)(2×5)
    ∴ B must be 3 × 5 matrix

    By: Munesh Kumari
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