firstly i wud say sir is right nd there r many ways in which it can b expressed (u shud mention tht )if the given expression can be written as
9( 1+11+111+...(2007 times)) then in each tem the no of times 1 is repeated inc by 1 ie like1,2,3,,4................2007 thus the otal no of times r n(n+1)/2 = 2007(2008)/2 = 2007* 1004= ans.
there is no right way 2 do something wrong !!!!!!!!
Moderation Team
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