Question

Two matrix can be added if _______

(a) rows of both the matrices are same

(b) columns of both the matrices are same

(c) both rows and columns of both the matrices are same

(d) number of rows of first matrix should be equal to number of column of second

This question was posed to me in an online interview.

My enquiry is from Types of Matrices in section Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics

Answer 1

The correct answer is (c) both rows and columns of both the matrices are same

The explanation is: Order of two matrices must be same.