There are 6n tickets numbered 0,1,2........., 6n-1 placed in a bag & three of the tickets are drwan out. Show that the probability for the sum of the numbers on the tickets to be 6n is 3n / [ (6n-1)(6n-2) ]

 

Puneet Bhaiya, plz solve the above problem. I will be eagerly waiting for your reply.

yaaaaar

 

question to chil hi hai .. answer galta lag raha hai ..

 

favorable case mein to bas find the coeff of 6n in ( 1 + x + x^2 + ... + x^(6n-1) )^3

 

And total case are 6n choose 3 .. rite

 

par answer to ye nai aaega usese

 

just check it out . ??

 

cheers