Question

The cost of a notebook is twice the cost of a pen. Write a linear equations in two variables to represent this statement.

• A. $x+2y=0$
• B. $x+3y=0$
• C. $x=-2y$
• D. $x-2y=0$

Answer 1

The correct option is D $x-2y=0$

Let the cost of a notebook be ₹ x
Let the cost of a pen be ₹ y
$x=2y\Rightarrow x-2y=0$