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Mathematics, 07.07.2020 07:01 kahmir15

33 cities were researched to determine whether they had a professional sports team, a symphony, or a children's museum. Of these cities, 13 had a professional sports team, 16 had a symphony, 15 had a children's museum, 10 had a professional sports team and a symphony, 4 had a professional sports team and a children's museum, 8 had a symphony and a children's museum, and 3 had all three activities. How many of the cities surveyed had only a professional sports team?

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