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Wednesday, October 21, 2015

Advanced Knowledge Problem of the Week

As Steven Spielberg would have it, today's the day Marty McFly visits the far-flung future of two thousand fifteen. I wrote down a time-travel themed Advanced Knowledge Problem, but I left it in the trunk of my flying car. Here's the one I came up with in the meantime.

Think you've worked it out? Keep reading for my solution.

Did you find the answer this way, or another way? Make sure to leave a comment if you found this problem interesting! 

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