Mathematics
Venn Diagrams
Practice questions
In a Venn diagram, what is A − B equal to?In a Venn diagram, what is B − A equal to?Which statement is correct for a Venn diagram?If n(A) = 18, n(B) = 20, and n(A ∩ B) = 6, what is n(A ∪ B)?If n(U) = 45 and n(A ∪ B) = 29, how many elements are in the region belonging to neither A nor B in the Venn diagram?If A = {1, 2, 3, 4, 5} and B = {4, 5, 6, 7}, which set represents the region containing elements only in A in a Venn diagram?What does the whole rectangle show in a Venn diagram?The common region between two circles is the region of what?In a Venn diagram, how is the region outside both circles but inside the universal set U represented?If A ⊆ B, inside which region will A lie in a Venn diagram?If A and B have no common element, how will they appear in a Venn diagram?If only A has 12 elements, A∩B has 5 elements, and only B has 8 elements, what is n(A∪B)?If \(n(U)=52\) and \(n(A\cup B)=37\), how many elements are in neither \(A\) nor \(B\)?In a Venn diagram, which region does A∩B′ represent?According to De Morgan's law, what is (A ∩ B)' equal to?If n(U) = 80, the number of elements outside both sets is 15, only A has 25 elements, and only B has 18 elements, what is n(A ∩ B)?If n(A ∪ B) = 44, the number of elements only in A is 16, and the number of elements only in B is 19, what is n(A ∩ B)?In a group of 36 people, 17 drink tea, 15 drink milk, and 6 drink both tea and milk. How many people drink only tea?In a sports camp there are 55 students. Of these, 30 take part in running, 22 in swimming, and 8 in both activities. How many students take part only in swimming?In a Venn diagram of three sets, how is the most central common region represented?