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SSC Sample Paper Mock Test-7 SSC CGL Tear-II Paper-1

  • question_answer
    The value of \[{{(0.98)}^{3}}+{{(0.02)}^{3}}+3\times 0.98\times 0.2-1\]is

    A)  1.98

    B)  1.09

    C)  1

    D)  0

    Correct Answer: D

    Solution :

    Expression \[={{(0.98)}^{3}}+{{(0.02)}^{2}}+3\times 0.98\times 0.02-1\] \[={{(0.98)}^{3}}+{{(0.02)}^{3}}+3\times 0.98\times 0.02(0.98+0.02)-1\]\[={{(0.98+0.02)}^{3}}-1=1-1=0\]


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