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Railways R.R.C. (Gorakhpur) Solved Paper Held on 2nd Shift 30-11-2014

  • question_answer
    0-000257 can be written as?

    A) \[2.57\times {{10}^{4}}\]                     

    B) \[2.57\times {{10}^{-4}}\]

    C) \[25.7\times {{10}^{4}}\]                     

    D) \[0.257\times {{10}^{-4}}\]

    Correct Answer: B

    Solution :

    0.000257=\[\frac{257}{{{10}^{6}}}\]                     \[2.57\times {{10}^{-4}}\]


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