[5" books and "7" pens together cost "79" ,whereas "],[7" books and "5" pens together cost "777" .Find the total "],[" cost of "1" book and "2" pens."]

5 books and 7 pens together cost Rs 79 whereas 7 books and 5 pens together cost Rs 77. Find the total cost of 1 book and 2 pens.

5 books and 7 pens together cost Rs 79 whereas 7 books and 5 pens together cost Rs 77. Find the total cost of 1 book and 2 pens.

5 books and 7 pens together cost Rs 434, whereas 7 books and 5 pens together cost Rs 550, find the total cost of 1 book and 2 pens.

3 bags and 4 pens together cost Rs 257 whereas 4 bags and 3 pens together cost Rs 324. Find the total cost of 1 bag and 10 pens.

A situation is given. Represent it in the form of linear equations. 5 books and 7 pens together cost Rs 79 whereas 7 books and 5 pens together cost Rs 77. Here consider cost of each book as Rs x and that of each pen as Rs y.

3 bags and 4 pens together cost Rs 257 whereas 4 bags and 3 pens together cost Rs324. Find the total cost of 1 bag and 10 pens.

Form the pair of linear equations in the following problem, and find the solution graphically: 5 pencils and 7 pens together cost Rs 50, whereas 7 pencils and 5 pens together cost Rs 46. Find the cost of one pencil and a pen.

Form the pair of linear equations in the following problem,and find the solution graphically: 5 pencils and 7 pens together cost Rs 50, whereas 7 pencils and 5 pens together cost Rs 46. Find the cost of one pencil and a pen.

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.