Form the pair of linear equations in the...

Form the pair of linear equations in the following problems, and find their solutions graphically : 5 pencils and 7 pens together cost Rs 50 whereas 7 pencils and 5 pens together cost Rs 46. find the cost of one pencil and that of one pen.

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The correct Answer is:

pencil is Rs 3 and pen is Rs5

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SWAN PUBLICATION-PAIR OF LINEAR EQUATIONS IN TWO VARIABLES -EXERCISE 3.2

Form the pair of linear equations in the following problems, and find ...
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Form the pair of linear equations in the following problems, and find ...
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On comparing the ratios (a1)/(a2), (b1)/b2 and (c1)/(c2) find out wh...
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On comparing the ratios (a1)/(a2), (b1)/b2 and (c1)/(c2) find out wh...
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On comparing the ratios (a1)/(a2), (b1)/b2 and (c1)/(c2) find out wh...
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On comparing the ratios (a1)/(a2), (b1)/b2 and (c1)/(c2) find out wh...
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On comparing the ratios (a1)/(a2), (b1)/b2 and (c1)/(c2) find out wh...
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On comparing the ratios (a1)/(a2), (b1)/b2 and (c1)/(c2) find out wh...
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On comparing the ratios (a1)/(a2), (b1)/b2 and (c1)/(c2) find out wh...
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On comparing the ratios (a1)/(a2), (b1)/b2 and (c1)/(c2) find out wh...
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Which of the following pairs of linear equations are consistent/incons...
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Which of the following pairs of linear equations are consistent/incons...
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Which of the following pairs of linear equations are consistent/incons...
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Which of the following pairs of linear equations are consistent/incons...
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Half the perimeter of a rectangular garden, whose length is 4 m more t...
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Given the linear equation 2x+3y-8 = 0, write another linear equation i...
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Given the linear equation 2x+3y-8 = 0, write another linear equation i...
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Given the linear equation 2x+3y-8 = 0, write another linear equation i...
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Draw the graphs of the equations x -y + 1 = 0 and 3x + 2y - 12 = 0. De...
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