The
quantities produced by each factory are represented as matrices given below:
Suppose Fatima wants to know the total production of sport shoes in each price
category Then the total production
In category 1 : for boys (80 + 90), for girls (60 + 50)
In category 2 : for boys (75 + 70), for girls (65 + 55)
In category 3 : for boys (90 + 75), for girls (85 + 75)
This can be represented in the matrix form as 
80
90
60
50
75
70
65
55
90
75
85
75
+
+




+
+




+
+

 Rationalised 2023-24
 44
MATHEMATICS
This new matrix is the sum of the above two matrices We observe that the sum of
two matrices is a matrix obtained by adding the corresponding elements of the given
matrices