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  4. Quantitative Aptitude
  5. Simplification

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

  • question_answer
    If \[\frac{a}{2}+b=0.8\] and \[\frac{7}{a+\frac{b}{2}}=10,\] then (a, b) are

    A)  (0.2, 0.4)         

    B)  (0.3, 0.5)

    C)  (0.4, 0.6)         

    D)  (0.4, 0.5)

    Correct Answer: C

    Solution :

    [c] \[a+2b=1.6\]                        ? (1) \[\frac{7}{a+\frac{b}{2}}=10\] \[\frac{14}{2a+b}=10\] \[2a+b=1.4\] By equation (1) and (2)               ? (2) a = 0.4, b = 0.6


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