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  3. 10th Class
  4. Mathematics
  5. Pair of Linear Equations in Two Variables

10th Class Mathematics Pair of Linear Equations in Two Variables Question Bank Pair of Lienear Equations in two variables and Quadratic Euqation

  • question_answer
    If the lines given by \[\mathbf{ax}-\mathbf{y}=\mathbf{3}\] and \[\mathbf{21x}-\mathbf{3y}=\mathbf{9}\] will have infinitely many solutions, then the value of a is ______

    A) 4                                                         

    B) 3           

    C) 7                                 

    D) 9

    E) None of these

    Correct Answer: C

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