Duke juniors (left to right) Arnav Mehta, Aaron Wise and Wei Li explain how they came up with a method in 96 hours for efficiently boarding airplanes. Watch the video.

Duke University teams led a pair of international math competitions with four "outstanding" awards. Only 18 out of 1,222 teams participating received the highest designation of "outstanding" in the competitions, which were sponsored by the Consortium for Mathematics and Its Applications. Teams were given 96 hours to propose mathematically rigorous solutions to problems such as how to best divide up voting districts or how to most efficiently board passengers on an airplane. The Duke team of juniors Wei Li, Arnav Mehta and Aaron Wise explained how they tackled the airplane boarding problem. Watch the video:

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