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Maths CBSE Live product
Class 10
Pair of linear equations in two variables
Existence of solution
15.
Word Probllems III
Question:
2
m.
The cost of \(2\) pens and \(1\) pencil box on a day was found to be \(Rs.160\). After a month, the cost of \(4\) pens and \(2\) pencil box is \(Rs 300\). Represent the situation algebraically and geometrically.
Algebraic representation:
\(2x- y + 160=0\) and \(4x -2y +300=0\)
\(2x + y +160=0\) and \(4x + 2y+300=0\)
\(2x - y = 160\) and \(4x -2y = 300\)
\(2x + y = 160\) and \(4x + 2y = 300\)
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