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[Post New]2 Apr 2007 17:27:46 IST
    Subject: Re:series
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kiran (943)

Forum Expert Scorching goIITian

Olaaa!! Perrrfect answer. 157  bad job dude!! I dont approve of this answer! 2  [240 rates]
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Hi
 
 
What vasanth said is correct!
 
Each number repeats repeats itself times.
So We know that nth term is sum of numbers upto that term,
 
n (n+1) /2 = Sum
n^2+ n = 2 * 165
n^2 + n - 330 =0
Solving the quadratic   n ~ 18
Hence 165th number is 18.
 
 
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