Algebra

ATUL KUMAR's Avatar
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2 Apr 2012 20:09:16 IST
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Engineering Entrance , JEE Main , JEE Main & Advanced , Mathematics , Algebra

An N digit number is a positive number having exactly N digits. 900 distinct digits are to be formed using only three digits 2, 5 and 7. The smallest value of N for which this is possible is..?? Also how??



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hemang's Avatar

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Joined: 27 Dec 2010
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3 Apr 2012 10:14:44 IST
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i think it should be 900 distinct N digit numbers. :)

 




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