Question

Let the number of matrices of order 3 x 3 are possible using the digits [0, 1, 2, 3, … , 10) is mn, then (m + n) is ___. (where m is a prime number)

Answer 1

The correct answer is 20.

So, we have 9 places and 11 numbers.

$\therefore$ Number of matrices = 119

$\therefore$ m+n = 20