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Mathematics, 12.04.2020 19:49 kids2006

At 11:00 a. M., there are 400 members and 150 non-members visiting a museum. After 11:00 a. M., 10 members leave every five minutes and 5 non-members arrive every five minutes. What is the ratio of members to non-members at 1:00 p. M.?

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At 11:00 a. M., there are 400 members and 150 non-members visiting a museum. After 11:00 a. M., 10 m...
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