Let’s say that you have 25 horses, and you want to pick the fastest 3 horses out of those 25. In each race, only 5 horses can run at the same time because there are only 5 tracks. What is the minimum number of races required to find the 3 fastest horses without using a stopwatch? This question is an interesting one. Let’s start by asking ourselves, what are our limitations? Well, we don’t have a stopwatch so we can’t time the horses.
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