Math Olympiad Contest Problems for Elementary and Middle Schools: #34 [HD]

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Published on November 3, 2016 10:34:32 PM ● Video Link: https://www.youtube.com/watch?v=80UsXpghIQQ

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Fifteen people purchased supplies for a ten-day camping trip with the understanding that each of the fifteen will get equal daily shares. They are then joined by five more people, but make no further purchases. How long will the supplies then last if the original daily share for each person is not changed?

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