The cost a pen is Rs 5 less than half of the cost of book. Write this statement as a linear equation in two variables.

The cost of ball pen is Rs.5 less than half of the coast of fountain pen. Write this statement as a linear equation in two variables.

Q.16The cost of 2 pencils is same as the cost of 5 erasers.Express the statement as a linear equation in two variables.

The cost of coloured paper is r 7 more than 1//3 of the cost of white paper wirte this statement in linear equation in two variables

The cost of 5 pencils is equal to the cost of 2 ballpoints. Write a linear equation in two variables to represent this statement. ( Take the cost of a pencil to be Rs. x and that of a ballpoint to be Rs. y).

The cost of 4 pens and 4 pencils boxes is Rs. 100. Three times the cost of a pen is Rs. 15 more than the cost of a pencil box. Form the pair of linear equations for the above situation. Find the cost of a pen.

The cost of 5 books is Rs. 40. What is the cost of 7 books?

The cost of 12 books is Rs. 144. Find the cost of 18 books.

A book costs Rs m and a pen costs Rs n more than half of the cost of book. Express the total cost of a book and a pen in terms of 'm' and 'n?

The cost of a book is three times the cost of a note book , write it in equation form using two variables.