SOLUTION: In a class of 40 students, 17 have ridden an airplane, 28 have ridden a boat, 10 have ridden a train, 12 have ridden both an airplane and boat, 3 have ridden a train only and 4 hav

Algebra ->  Algebra  -> sets and operations -> SOLUTION: In a class of 40 students, 17 have ridden an airplane, 28 have ridden a boat, 10 have ridden a train, 12 have ridden both an airplane and boat, 3 have ridden a train only and 4 hav      Log On

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 Click here to see ALL problems on sets-and-operations Question 617178: In a class of 40 students, 17 have ridden an airplane, 28 have ridden a boat, 10 have ridden a train, 12 have ridden both an airplane and boat, 3 have ridden a train only and 4 have ridden an airplane only. Some students in the class have not ridden any of the three modes of transportation and an equal number have taken all three. Answer by richwmiller(9143)   (Show Source): You can put this solution on YOUR website!Thank you for telling me about your class. Is there a question?