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Railways R.R.C. (Patna) Solved Paper Held on 1st Shift 16-11-2014

  • question_answer
    \[{{(256)}^{0.16}}\times {{(16)}^{0.18}}=?\]

    A) 4                                 

    B) 16

    C) 64                                

    D) 256

    Correct Answer: A

    Solution :

    \[?={{(256)}^{0.16}}\times {{(16)}^{0.18}}\] \[={{(16)}^{2\times 0.16+0.18}}\] \[={{(16)}^{0.5}}\] \[={{4}^{2\times 0.5}}\] \[=4\] 


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