Assume X , Y , Z , W and P are matrices of order , and respectively. If n = p , then the order of the matrix is A p × 2 B 2 × n C n × 3 D p × n

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Solution

It is given that,

Matrix X has an order of 2×n

Thus matrix 7X will also have an order of 2×n.

It is also given that,

Matrix Z has an order of 2×p.

Thus matrix 5Z will also have an order 2×p

Since n=p, thus matrix 5Z will have an order 2×n.

So, matrix 7X-5Z will have an order 2×n.

Therefore, option (B) is the correct answer.

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Similar questions

Assume X, Y, Z, W and P are matrices of order, and respectively. If n = p, then the order of the matrix is

A p × 2 B 2 × n C n × 3 D p × n

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Assume X, Y, Z, W and P are matrices of order, and respectively. The restriction on n, k and p so that will be defined are:

A. k = 3, p = n

B. k is arbitrary, p = 2

C. p is arbitrary, k = 3

D. k = 2, p = 3

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