List of top Mathematics Questions on Sets asked in AP POLYCET

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?

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?

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

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