List of top Mathematics Questions on Sets

Which of the following is a finite set?

If A = {1, 2, {3, 4}, 5}, then which of the following is incorrect?

If A and B are the two sets containing 3 and 6 elements respectively, then what can be the maximum number of elements in A∪B?

If \( A \) is the set of even natural numbers less than 8 and \( B \) is the set of prime numbers less than 7, then the number of relations from \( A \) to \( B \) is:

Given the following sets:
𝐴 = {2, 4, 6, 8, 10, 12}
𝐵 = {8, 10, 12, 14, 16, 18}
𝐶 = {7, 8, 9, 10 11, 12, 13}
(𝐴 ∩ 𝐵) ∪ (𝐵 ∩ 𝐶) is

Which of the following is true?

In a class of 60 students, 45 students like music, 50 students like dance and 5 students like neither. Then, the number of students in the class who like both music and dance is

Match the following:

A	Null set	I	{x : x is a real number}
B	Singleton set	II	{x : x is a whole number and x < 0}
C	Infinite set	III	{x : x is an even prime number}

Which of the following collections is not a set?

A={C,O,V,I, D, 19, 2020}, B={C,O,V,I, D, 19, 2021} then B-A=?

If \(A∩B = B\), then the correct statement is

A= {P, O, L, Y, T, E, C, H, N, I, Q), B= {P, O, L, Y, C, E, T, 2020), B-A=

If A={a}, B={a,b}, C={a,b,c}, then A∩B∩C=

If A∩B= d. then which of the following is correct?

n(A)=8, n(B)=9, n(A∩B)=6 where A and B are two sets, then n(AUB)=

If A is the set formed by the letters of the word 'POSSESSIVENESS' then n(A) =

\((A-B)∪(B-A)=\)

The set defined by \(A = \{ n \in \mathbb{N} \mid (1 + n^2) < 50 \}\) , where N is the set of natural numbers, then the mean value of elements of A is