Question
The number of all possible matrices of order 3 x 3 with each entry 0 or 1 is.
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27
-
18
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81
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512
Solution
D.
512A matrix of order 3 x 3 has 9 elements. Now each element can be 0 or 1.
∴ 9 places can be filled up in 29 ways
required number of matrices = 29
=2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2
=512 ,
∴ (D) is correct answer.
