Question -
Answer -
Their selling prices are Rs 80, Rs 60 and Rs 40 each respectively. Find the total amount the bookshop will receive from selling all the books using matrix algebra.
Solution
The bookshop has 10dozen chemistry books, 8 dozen physics books, and 10 dozen economics books.
The selling pricesof a chemistry book, a physics book, and an economics book are respectivelygiven as Rs 80, Rs 60, and Rs 40.
The total amount of moneythat will be received from the sale of all these books can be represented inthe form of a matrix as:Thus, the bookshopwill receive Rs 20160 from the sale of all these books.