Q.1
Let the set A is { and B is {4}. Then the number of elements in A U B is?
  • a) 4
  • b) 5
  • c) 6
  • d) 7
Q.2
Let the set A is { and B is {4}. Then number of elements in A ∩ B is?
  • a) 1
  • b) 2
  • c) 3
  • d) 4
Q.3
Let the set A is { and B is {4}. Then the set A – B is?
  • a) {1, -4}
  • b) {1, 2, 3}
  • c) {1}
  • d) {2, 3}
Q.4
In which of the following sets A – B is equal to B – A?
  • a) A = {1, 2, 3}, B = {2, 3, 4}
  • b) A = {1, 2, 3}, B = {1, 2, 3, 4}
  • c) A = {1, 2, 3}, B = {2, 3, 1}
  • d) A = {1, 2, 3, 4, 5, 6}, B = {2, 3, 4, 5, 1}
Q.5
Let A be set of all prime numbers, B be the set of all even prime numbers, C be the set of all odd prime numbers, then which of the following is true?
  • d) All of the mentioned
  • a) A ≡ B U C
  • b) B is a singleton set.
  • c) A ≡ C U {2}
Q.6
If A has 4 elements B has 8 elements then the minimum and maximum number of elements in A U B are ____________
  • a) 4, 8
  • b) 8, 12
  • c) 4, 12
  • d) None of the mentioned
Q.7
If A is {{Φ}, {Φ, {Φ}}}, then the power set of A has how many element?
  • a) 2
  • b) 4
  • c) 6
  • d) 8
Q.8
Two sets A and B contains a and b elements respectively. If power set of A containsmore elements than that of B, value of ‘b’ and ‘a’ are _______
  • a) 4, 5
  • b) 6, 7
  • c) 2, 3
  • d) None of the mentioned
Q.9
Let A be {4}, U be set of all natural numbers, then U-A’(complement of A) is given by set.
  • a) {1, 2, 3, 4, 5, 6, ….}
  • b) {5, 6, 7, 8, 9, ……}
  • c) {1, 2, 3, 4}
  • d) All of the mentioned
Q.10
Which sets are not empty?
  • a) {x: x is a even prime greater than 3}
  • b) {x : x is a multiple of 2 and is odd}
  • c) {x: x is an even number and x+3 is even}
  • d) { x: x is a prime number less than 5 and is odd}
0 h : 0 m : 1 s