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SSC Sample Paper Mock Test-20 SSC CGL Tear-II Paper-1

  • question_answer
    \[\frac{47\times 47\times 47\times 35\times 35\times 35+26\times 26\times 26-47\times 35\times 78}{47\times 47+35\times 35+26\times 26-47\times 35-35\times 26-47\times 26}\]equal to

    A) 105      

    B)  99     

    C)  108     

    D)  105

    Correct Answer: C

    Solution :

    Given expression \[=\frac{{{a}^{3}}+{{b}^{3}}+{{c}^{3}}-3abc}{{{a}^{2}}+{{b}^{2}}-ab-bc-ca},\]where \[a=47,\]\[b=35,\]\[c=26\]             \[=(a+b+c)=(47+35+26)=108\]


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