Question

The cost of 4 books and 3 rotebooks is Rs. 240.
Represent this statement is the form of linear equation in
two variables.​

Answer 1

Question:

The cost of 4 books and 3 notebooks is Rs. 240.

Represent this statement is the form of linear equation in two variables.

Solution:

Let the cost of the books be 'X'.

and the cost of notebooks be 'Y'.

Now,

Cost of 4 books = 4 × X = 4X

and the cost of 3 notebooks = 3 × Y = 3Y

The linear equation so formed is 4X + 3Y = 240.