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OpenStudy (anonymous):
Barb, Shelley, and Darcy are college roommates. Barb goes to the library every 6 days, Shelley goes the library every 7 days, and Darcy goes to the library every 4 days. If all three of them went to the library today, when is the next time that they will all be at the library on the same day?
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OpenStudy (plasmataco):
84 days?...
OpenStudy (plasmataco):
7*3*4
OpenStudy (anonymous):
If today is Saturday, they will all be in the library on Saturday, 84 days from now if I am not mistaken...
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