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Banking Sample Paper SBI Clerk Grade (Main) Sample Test Paper-3

  • question_answer
    Direction: What will come in place of question mark (?) in the following question? \[{{\left( \sqrt{8} \right)}^{6}}\times {{(64)}^{3}}\div {{8}^{4}}={{(8)}^{?}}\]

    A)  3

    B)  4

    C)  5

    D)  7

    E)  None of these         

    Correct Answer: C

    Solution :

        \[{{\left( {{8}^{\frac{1}{2}}} \right)}^{6}}\times {{(8\times 8)}^{3}}\div {{8}^{4}}={{8}^{?}}\] \[\Rightarrow \text{ }{{8}^{3}}\times \text{ }{{8}^{6}}\div {{8}^{4}}={{8}^{7}}\] \[\Rightarrow {{8}^{3}}^{+6-4}={{8}^{?}}\Rightarrow {{8}^{5}}=\text{ }{{8}^{?}}\Rightarrow ?=5\]                    


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