Re: probability

ok...look at it this way... you have to pick 2 balls. now when u pick the first ball.... it may be either 0,1,2 or 3. If 0 then we need next ball numbered 3 out of 3 balls to sum up as 3... probability of getting ball with #3 is 1\3 Similarly If 1 then we need next ball 2 to sum up as 3... probabili...