Venn Diagram - The Silversnake class, the Jellyfish class, and theRadical Dog-Star class (kindergartners and first- andsecond-graders) were talking about their favorite field tripsduring the school year. One of the teachers, Ms. Burke, turned thediscussion into a math lesson, and the students conducted a survey.Each child wrote down on paper which trip was his or her favorite.(Note that many children named more than one field trip as theirfavorite.) The survey revealed that 52 wrote down the trip to theriver, 50 indicated the trip to the police station, and 44 includedthe trip to the hardware store. The police station and the riverwere chosen on 19 papers, 32 papers included both the river and thehardware store, and 25 children wrote down the police station andthe hardware store on their papers. Ms. Burke counted 17 papersthat included all three and one that did not list any of the threetrips. How many children were surveyed? How many children wrotedown the river but not the police station? How many children didnot list the hardware store?
