In this post, I’ll describe my solution to June 2007’s Ponder This. I had felt that my solution was kind of nifty, and different from the one that was published. It had actually taken me several days to work the whole thing out.

Here’s part (2), the tougher part, of the problem: Values for a random variable are generated independently and uniformly over . By accumulating these values, your job is to reach a sum between and , where is a positive integer, and . Continue reading