Graphical representation and form an equation — task. Maths CBSE Live product, Class 10 (2026-27).

The cost of 4 pens and \(l\) of pencil box on a day was found to be \(Rs.180\). After a month, the cost of 12 pens and 3 pencil box is \(Rs \)540. Represent the situation algebraically and geometrically.

Algebraic representation:

\(2x + y +160=0\) and \(4x + 2y+300=0\)
\(2x - y = 160\) and \(4x -2y = 300\)
\(5x + y = 200\) and \(10x + 2y = 450\)
\(2x- y + 160=0\) and \(4x -2y +300=0\)

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2. Graphical representation and form an equation

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