Question
Cathy spent $30.80 on an equal number of plates and cups. If 5 plates cost $13.20 more than 3 cups while 1 plate cost as much as 3 cups, how many plates did she buy?
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Cathy spent $30.80 on an equal number of plates and cups. If 5 plates cost $13.20 more than 3 cups while 1 plate cost as much as 3 cups, how many plates did she buy?