Question on Differential Equatio...


 

Posted on : 06:01:55 PM on February 4, 2010
akhil mahajan
akhil mahajan
  Offline

let a,b &c be an increasing sequence of positive integers in which a=2010 and b divides c. if N is the number of such sequences where a,b,c are in H.P., what is the last digit of N?


(Originally referred to: Manohar Siriki)

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