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The Airplane Fuel Puzzle

Dec 11, 2023
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The Airplane Fuel Puzzle: An airplane can carry enough fuel for exactly half of the globe. It has a unique refueling system that allows fuel transfers in mid-air. What is the minimum number of airplanes required to get one plane around the globe, assuming all airplanes depart from the same airport and need to return?

Answer: Three airplanes. They fly tog…

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