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|Game||Professor Layton and the Last Specter|
These poor-quality mops take two days to dry after they've been used, and the handle completely breaks after just three uses!
What is the minimum number of mops that you would need to clean every day for a 30-day month?
Try to be as economic with your mops as possible.
You mopped this puzzle up!
You would need 10 mops. The trick is to use your fourth mop frugally! Three mops are used up every nine days. The fourth mop can be used once on the 10th day. Follow the same pattern for the next 10 days, using the fourth mop again once. By the 30th day, you will have used only 10 mops.
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A big thanks to http://professorlayton4walkthrough.blogspot.com