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10th Class Mathematics Pair of Linear Equations in Two Variables Question Bank MCQs - Pair of Linear Equations in Two Variables

  • question_answer
    5 chairs and 4 tables together cost Rs.2800 while 4 chairs and 3 tables together cost Rs.2170. Algebraic representation of the situation can be:

    A) \[5x-4y=2800,\] \[4x-3y=2170\]

    B) \[5x+4y=2800,\] \[4x+3y=2170\]

    C) \[5x+3y=2800,\] \[4x+3y=2170\]

    D) \[5x-3y=2800,\] \[4x-3y=2170\]

    Correct Answer: B

    Solution :

    [b] Let the cost of a chair be Rs.x and that of a table of be Rs.y.
    According to the question, \[5x+4y=2800\]
    and                \[4x+3y=2170\]


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