Question

? 13 49
9 17 69
13 11 59 find the value of question mark in a matrix ?​

Answer 1

Explanation:

In the second row. 2 x 9 + 3 x 17 = 18 + 51 = 69.

In the third row, 2 X 13 + 3 x 11 = 26 + 33 = 59

Now, let the missing number in the first row be y.

Then, 2y + 3 x 13 = 49

or, 2y = 10

or, y = 5