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SSC Sample Paper SSC CGL - Sample Paper-4

  • question_answer
    The value of \[\frac{0.051\times 0.051\times 0.051+0.041\times 0.041\times 0.041}{0.051\times 0.051-0.051\times 0.041+0.041\times 0.04}\] is

    A)  0.92                            

    B)  0.092

    C)  0.0092            

    D)  0.00092

    Correct Answer: B

    Solution :

    Let 0.051 = x and 0.041 = y \[\therefore \] The given expression             \[=\frac{{{x}^{3}}+{{y}^{3}}}{{{x}^{2}}-xy+{{y}^{2}}}\]             \[=\frac{(x+y)({{x}^{2}}-xy+{{y}^{2}})}{{{x}^{2}}-xy+{{y}^{2}}}\]             \[=x+y=0.051+0.041\]             = 0.092


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