Question
If (15000) 4 = 50.625Â
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?Solution
(15000) 4Â = 50.625Â 
 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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