2. Sample Papers
  3. Railways
  4. Quantitative Aptitude
  5. Simplification

Railways Quantitative Aptitude Simplification Sample Paper Simplification Sample Test Paper-3

  • question_answer
    If \[6x+3y=7xy\] and \[3x+9y=11xy,\] then the value of x and y are

    A)  \[\left( 1,\frac{3}{2} \right)\]      

    B)  \[\left( 2,\frac{3}{2} \right)\]

    C)  \[\left( \frac{3}{2},1 \right)\]      

    D)  \[\left( \frac{3}{2},2 \right)\]

    Correct Answer: A

    Solution :

    [a] \[6x+3y=7xy\]          ? (1) \[3x+9y=11xy\]             ? (2) By equations (1) and (2) \[x=1,\]             \[y=\frac{3}{2}\]


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