Problems

A box contains exactly five chips, three red and two white. Chips are randomly removed one at a time without replacement until all the red chips are drawn or all the white chips are drawn. What is the probability that the last chip drawn is white?

When the mean, median, and mode of the list $$10,2,5,2,4,2,x$$ are arranged in increasing order, they form a non-constant arithmetic progression. What is the sum of all possible real values of $x$ ?