What is the logic of marbles in medium practice section....how it can be (n1)C(k1)??.....pls help...thanks asked 04 Feb '14, 12:11

There are many duplicates questions related to question please see this post . answered 06 Feb '14, 00:23

Reali thanks..this qstion was disturbing me for two days... answered 06 Feb '14, 03:30

You can use the popular Beggar's method (is usually taught in High Schools). Distribution of nk coins to k beggars. For distribution of r identical coins among n beggars is c(n+r1,r1) Applying the formula you get required the formula answered 18 Dec '18, 22:33
