Sam draws x coins from a box that has n dimes and n pennies. What is the probability that he would draw i dimes? Please I am desperate.. Solution I believe this is the solution: First, how many ways can we select i dimes from n dimes? This is nCi Next, how many ways can we select x coins from 2n total coins? This is 2nCx Hence, the answer is nCi / 2nCx.