In a school, there are two book stores. Store A sold 10 dozen Mathematics books, 3 dozen Science books and 6 dozen Civics books. Store B sold 6 dozen Mathematics books, 3 dozen Science books and 10 dozen Civics books. Their selling price are ₹80, ₹60, ₹40 each respectively. Using matrix algebra answer the following:
- Create a matrix for the price and the matrix for the number of books sold per store.
- Find the product of two matrices and explain what it represents.
- How would you find the total revenue generated by both the stores?
- Find the total gross revenue from the sale of Civics books in both the stores.
- Which store has generated more revenue?
- If the selling price of each book is doubled. Find the total revenue generated by store B.
Maths XII Q3
