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 a 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.
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 a 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.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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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 a 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.
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