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Ravi purchases 1 pen, 4 pencils and 1 box in Rs. 34. From the same store Neeraj purchases 2 pens, 2 pencils in Rs. 26 and Neetu purchases 1 pen, 3 pencils and 2 boxes in Rs. 43. Express this problem into matrix form.
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM

Let price of 1 pen = Rs.x,

Price of 1 pencil = Rs. y and
Price of 1 box = Rs. z

From the given conditions,
X + 4y + z = 34    …(1),
2x + 2y = 26        …(2) and
x + 3y + 2z = 43  …(3)

The system of linear equations can be written as:
Answered by | 04 Jun, 2014, 03:23: PM

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