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Railways R.R.C. (Bilaspur) Solved Paper Held on 24-11-2013

  • question_answer
    If \[{{5}^{x}}\]= 625, then what will be the value of x?

    A) 2                                 

    B) 4

    C) 25                                

    D) 125

    Correct Answer: B

    Solution :

    \[{{5}^{x}}=625\] \[{{5}^{2}}=5\times 5\times 5\times 5\]   \[{{5}^{x}}={{5}^{4}}\] \[x=4\]


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