Q. 115.0( 1 Vote )

An electronic company records each type of entertainment device sold at three of their branch stores so that they can monitor their purchases of supplies. The sales in two weeks are shown in the following spreadsheets.



Find the sum of the items sold out in two weeks using matrix addition.

Answer :

Here we consider the types of items sold along the column and the store in which they are stored along the rows


Thus week 1 and week 2 matrices can be written as


W1 = and W2 =


The sum of the items sold in two weeks is the sum of the above two matrices, which is sum of each corresponding elements of the two matrices


W1 + W2 =



TV DVD video CD


The sum of items sold in two weeks =


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses