The way things are shaping up, there could be a record number competing in this year’s Australian Open — some 803 players in all.
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Archives for November 2007
Mind Bender # 12: Anyone for Tennis?
Mind Bender # 11: Solution
This time, there were a number of people able to “engineer” a 9-minute period for this Hourglass problem.
However, only a few of you managed to capture the spirit of finding the most elegant solution. Well done!
Start by turning both hourglasses over together.
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