If A is a matrix of order 3 \times5 and B is a matrix of order 5 \times3, then the order of A B and B A will respectively be [NDA-I 2020]

Correct Answer is : 3×3 and 5×5

UPSC NDA I and II 2020 Math Solved Paper

Question : 26 of 120

Marks: +1, -0

If A is a matrix of order 3×5 and B is a matrix of order 5×3, then the order of AB and BA will respectively be

[NDA-I 2020]

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