Question

The cost of a notebook is twice the cost of a pen. Represent this statement as a linear equation in two variables.(Take the cost of a notebook be ₹x and that of a pen to be ₹y).​

Answer 1

Answer:

If the cost of a notebook is twice the cost of a pen, then a linear equation in two variables to represent this statement is x - 2y = 0.

Answer 2

Question :-

The cost of a notebook is twice the cost of a pen. Represent this statement as a linear equation in two variables.

(Take the cost of a notebook be ₹x and that of a pen to be ₹y).

Solution :-

○ Let cost of notebook be Rs x.

‎ ‎ ‎ ‎ ‎& Cost of pen be Rs y.

According to the question :-

○ Cost of a notebook = 2 (cost of a pen)

‎ ‎ ‎ ‎ ‎ ‎x = 2y

‎ ‎ ‎ ‎ ‎ ‎x – 2y = 0.

Hope it helps you.