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2 only? How many students are there in all? À 4. A group of 300 incoming Grade 7 students were given questionnaires to find out who like Online classes as belonged to Group A, Offline classes as belonged to Group B and physical but no-contact policy as belonged to Group C. It was found out that 138 students belonged to A, 150 students belonged to B, 95 students belonged to C, 58 students belonged to both A and B, 47 students belonged to both A and C, 42 students belonged to both B and C and 25 students belonged to the three options. How many students belonged to A only, to B only, to C only and how many students are still undecided? 5. There are 35 students in art class and 57 students in dance class. Find The number of students a. who are either in art class or in dance class. b. when two classes meet at the same hour. c. when two classes meet at different hours.
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