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Banking Quantitative Aptitude Sample Paper Quantitative Aptitude Sample Paper-42

  • question_answer
    If \[0.42\times {{100}^{k}}=42,\]then the value of k is                             [SSC (CPO) 2012]

    A) 4                                 

    B) 2  

    C) 1         

    D) 3

    Correct Answer: C

    Solution :

    Given, \[0.42\times {{100}^{k}}=42\]
    \[\Rightarrow \]\[\frac{42}{100}\times {{100}^{k}}=42\]
    \[\Rightarrow \]\[{{100}^{k}}=\frac{42\times 100}{42}={{100}^{1}}\]
    On comparing both sides, we get
    \[k=1\]


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