## Maths Chapter 3 – Matrix MCQ Question Answers for Various Entrance Exams

1. If A and B are two matrices of the order 3 × m and 3 × n, respectively, and m = n, then the order of matrix (5A – 2B) is
a.
b.
c.
d.

2. Question
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b.
c.
d.

3. If matrices A and B are inverse of each other then
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b.
c.
d.

4. Question
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d.

5. Question
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6. Which of the following is not a possible ordered pair for a matrix with 6 elements
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b.
c.
d.

7. Question
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b.
c.
d.

8. If A and B are matrices of the same order, then (AB’ – BA’) is a
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b.
c.
d.

9. If a matrix A is both symmetric and skew-symmetric, then
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b.
c.
d.

10. If A and B are symmetric matrices of the same order, then
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b.
c.
d.

11. Question
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12. Question
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13. If n = p, then the order of the matrix 7X – 5Z is:
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b.
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d.

14. If A is an m × n matrix such that AB and BA are both defined, then B is a ____.
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b.
c.
d.

15. Question
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16. For any two matrices A and B, we have
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b.
c.
d.

17. The diagonal elements of a skew symmetric matrix are
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b.
c.
d.

18. If A is a square matrix, then A – A’ is a
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b.
c.
d.

19. Total number of possible matrices of order 2 × 3 with each entry 1 or 0 is ____.
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d.

20. Question
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21. The number of 3 × 3 non-singular matrices, with four entries as 1 and all other entries as 0, is:
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d.

22. Question
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23. Question
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24. Question
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25. Question
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