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Mathematics, 07.10.2019 08:30, geekymuin
In a class, 22 students have been on a plane, 28 on a train, 23 on a boat, 15 on a plane and train, 20 on a train and boat, 14 on a plane and boat, 12 on all three, and 1 on none of them. how many students are in the class?
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Answers: 2
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In a class, 22 students have been on a plane, 28 on a train, 23 on a boat, 15 on a plane and train,...
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