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      Question

      If (15000) 4 = 50.625 

      src='https://static.ixambee.com/public/images/quesimg/Question Bank/Quantitative Aptitude/Surds and indices/77643_6565206.gif'> 10 k then what is the value of k?
      A 15 Correct Answer Incorrect Answer
      B 18 Correct Answer Incorrect Answer
      C 27 Correct Answer Incorrect Answer
      D 21 Correct Answer Incorrect Answer

      Solution

      (15000) 4 = 50.625    10 k or (15  103)4 =   10k or 154 1012 = 154  10(k-3) or 1012 = 10(k-3) or k = 12+3 = 15

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