The cost of a pen is ₹x and the cost of a pencil is ₹y. If the cost of the pen is twice the cost of the pencil, then represent it using an equation in 2 variables.

x - 2y = 0.

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x + 2y = 0

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2x - y = 0.

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2x + y = 0.

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Solution

The correct option is A x - 2y = 0.
Given the cost of a pen is ₹x.
The cost of pencil is ₹y.

From the given data x = 2y
Therefore linear equation will be $x = 2 y$
$\Rightarrow x - 2 y = 0$

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