How to calculate how many skips I need to make to get a percentage.
i.e. Let's say I have 13 million apples and I am going through each one counting and every 10 apple I place it in a different bucket, at the end I end up with a bucket with 10% of the original number of apples.
How many apples do I need to skip to get 20% in the bucket?
How many do I need to skip to get n% in the bucket?
thanks.