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

  • question_answer
    The pair of equations \[ax+2y=7\] and \[3x+by=16\] represent parallel lines if:

    A) \[a=b\]

    B) \[3a=2b\]

    C) \[2a=3b\]

    D) \[ab=6\]

    Correct Answer: D

    Solution :

    [d] For parallel lines, \[\frac{a}{3}=\frac{2}{b}\ne \frac{7}{16}\Rightarrow ab=6\]


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