The bookshop of a particular school has 10 dozen chemistry books, 8 dozen physics books, 10 dozen economics books. Their selling prices are Rs. 80, Rs. 60 and Rs. 40 each respectively. Find the total amount the book-shop will receive from selling all the books using matrix algebra.

The co-operative store of a particular school has 10 dozen physics books, 8 dozen chemistry books and 5 dozen mathematics books. Their selling prices are Rs.65.70, Rs. 43.20 and Rs 76.50 respectively. Find by matrix method, the total amount of the store will receive from selling all these items.

Reji’s father bought several note books of the same price. Total price Rs. 360. If the price of each book were less by 2 rupees, he would get 2 books more. Find the number of books bought.

Reji’s father bought several note books of the same price. Total price Rs. 360. If the price of each book were less by2 rupees, he would get 2 books more. Find the number of books if the price of one book is x.

Reji’s father bought several note books of the same price. Total price Rs. 360. If the price of each book were less by 2 rupees, he would get2 books more. Find the number of books if the price of one books is less by 2 rupees.

Reji’s father bought several note books of the same price.Total price Rs. 360. If the priceof each book were less by2 rupees, he would get2 books more.Form a quadratic equation.

Shyam bought 5 two hundred page notebooks and 3 hundred page notebooks from the school store. The price. of a two hundred page book is 9 rupees and the price of a hundred page book is 4 rupees. How much did Shyam spent? Use any letters you like for the number of two hundred page note books bought from this store, the number of hundred page books bought and the total amount of money spent by a student, and write the relation connecting them.