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Banking Sample Paper SBI Clerk Grade (Main) Sample Test Paper-4

  • question_answer
    Direction: What should come in place of the question mark (?) in the question?
    \[{{\left( 0.027 \right)}^{2}}\times {{\left( 0.09 \right)}^{2}}\div {{\left( 0.3 \right)}^{6}}={{\left( 0.3 \right)}^{?}}\]

    A)  3                    

    B)  2

    C)  5                    

    D)  6

    E)  None of these

    Correct Answer: E

    Solution :

     \[{{(0.027)}^{2}}\times {{(0.09)}^{2}}\div {{(0.3)}^{6}}={{(0.3)}^{?}}\] \[={{(0.3)}^{3\times 2}}\times {{(0.3)}^{2\times 2}}\div {{(0.3)}^{6}}={{(0.3)}^{?}}\] \[={{(0.3)}^{6+4-6}}={{(0.3)}^{?}}\] \[\Rightarrow {{(0.3)}^{4}}={{(0.3)}^{?}}\] \[\Rightarrow ?=4\]


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