5 books and 7 pens together cost Rs 79, whereas 7 books and 5 pens together cost Rs77. Find the toal 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 Rs324. 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.

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.

5 pencils and 7 pens together cost Rs 50, whereas 7 pencils and S pens together cost Rs 46. Find the cost of one pencil and that of one pen.

Form the pair of linear equations in the following problems, and find their solutions graphically. 5 pencils and 7 pents together cost Rs 50, whereas 7 pencils and 5 pens together cost Rs 46. Find the cost of one pencil and that of one pen.

Form the pair of linear equations in the following problems, and find their solutions graphically. (i) 10 students of Class X took pan in a Mathematics quiz. If the number of girls is 4 more than the number of boys, find the number of boys and girls who took part in the quiz. (ii) 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 that of one pen.

2tables and 3chairs together cost Rs 2000 whereas 3 tables and 2 chairs together cost Rs2500. Find the total cost of 1 table and 5 chairs