Ramesh and Govind are two friends of a class.Ramesh wants to buy 5 pens and 7 notebooks,Govind wants to buy 3pens and 10 notebooks.Both of them went to a shop which they have selected was Rs.5 and Rs.12.Using matrix multiplicaton,find the amount required for each one of them.

Jay and Ram are two friends in a class.Jay wanted to buy 4 pens and 8 notebooks,Ram wanted to buy 5 pens and 12 notebooks.Both of them went to a shop.The price of a pen and a notebook which they have selected was Rs.6 and rs. 10.Using matrix multiplication,find the amount required from each one of them.

Nina and Meena want to buy pens and books. Nina wants 2 pens and 5 books while Meena wants 6 pens and 8 books. They both go to a shop and buy them. When the shopkeeper gives them the pens and the books, Nina pays him Rs. 110 and Meena pays him Rs. 190. Find the prices of one pen and one book using matrices.

Read the following passage write the appropriate amount in the boxes and discuss. Govind, who is a dry land farmer from Shiralas has a 5 acre land. His family inclde his wife two children and his old mother. He borrowed one lakh twenty five thousand rupees from the bank for one year as agriculatral loan at 10 p.c.p.a . He cultivated soyabean in x acres and cotton and tur in y acres. He spent Rs. 10,000 on seeds. The expenses for fertilizers and pesticides for the soyabean crop was 2000x rupees and 4000x2 rupees were spent on wages and cultivation of land. He spent 8000 y rupees on fertilizers and pesticides and rupees 9000 y2 for wages and cultivation of land for the cotton and tur crops. Let us write the total expenditure on all the crops by using variables x and y. rupees. He harvested 5x2 quintals soyabean and sold it at Rs. 2800 per quintal. The cotton crop yield was 5/3y2 quintals which fetched Rs. 5000 per quintal. The tur crop yield was 4y quintals and was sold at Rs. 4000 per quintal. Let us write the total income in rupees that was obtained by selling the entire farm produce, with the help of an expression using variables x and y. square + square + square rupees

Two different kinds of food A and B are being considered to form a weekly diet . The minimum weekly requirements for fats , carbohydrates and protein are 18, 24 and 16 units respectively . One kg of food A has 4 , 16 , and 8 units respectively of these ingredients and one kg of food B has 12 ,4 and 6 units respectively The price of food A is Rs 6 per kg and that of food B is Rs 5 per kg. How many kg of each type of food should he buy per week to minimize the cost and meet his requirements . Formulate this LPP