Clue to Puzzle #52: Different Coloured Socks in a Draw.
AssumptionsTo be clear we are assuming socks are either black or white, and a pair constitutes either two black or two white socks.
The PuzzleSo we need to think about the worst case scenarios after drawing a certain number of socks. If we have taken two socks we could have a pair, or we could have one of each. What about if we pull another sock, and another one.
Extend this to N different colours.
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