The cost of the 4kg of potato,3kg wheat and 2kg rice is Rs.150.The cost of 1kg potato,2kg wheat and 3kg rice is Rs.125.The cost of 6kg potato,2kg wheat and 3kg rice is Rs.175.Find the cost per kg,by using Cramer's Rule

The cost of 4 pencils, 3 pens and 2 books is Rs.150. The cost of 1 pencil, 2 pens and 3 books is Rs.125.The cost of 6 pencils , 2 pens and 3 books is Rs. 175. Find the cost of each item by using matrices.

Find the cost of 8 kg of rice, if the cost of 10 kg of rice is ₹ 325.

The cost of 2 books and 6 note books is Rs. 34 and the cost of 3 books and 4 note books is Rs. 31. Using the matrices, find the cost of one book and one note-book

3 books and 10 pens together cost Rs 300. 2 books and 3 pens together cost Rs 145. Find the cost of 1 book and 3 pens.

The sum of the costs of one book each of Mathematics, Physics and Chemistry is Rs 210. Total cost of a mathematics book, 2 physics books, and a chemistry book is Rs. 240/- Also the total cost of a Mathematics book, 3 physics book and 2 chemistry books is Rs. 300/-. Find the cost of each book using matrices.

Three particles of masses1kg, 2 kg and 3 kg are at distances 1 m, 2 m and 3 m from the axis of rotation. The moment of inertia of the system is