How Big Can $A$ Be?
Difficulty: Medium · Topics: Discrete Mathematics, Sets, Venn Diagrams
For the subsets A and B of a set with 10 elements,
n(Acup B)=3· n(Acap B), n(Bsetminus A)=2.
At most how many elements can the set A have?
Difficulty: Medium · Topics: Discrete Mathematics, Sets, Venn Diagrams
For the subsets A and B of a set with 10 elements,
n(Acup B)=3· n(Acap B), n(Bsetminus A)=2.
At most how many elements can the set A have?