ICSE Board Practice

Class VI Class VII Class VIII Class IX Class X
ICSE Grade VI - Sets
Question 1
1.
If A = {15,14,13,0,3,11,4} and B = {6,5,9,1,10,11,7} , then A ∩ B =
  • {1,14,11}
  • {11,5}
  • {16,11}
  • {11}
  • {13,11}
Question 2
2.
Which of the following are true?
a)
A ∩ ∅ = A
b)
A ∪ ∅ = A
c)
A ∪ ∅ = ∅
d)
A ∪ A = A
e)
A ∪ A = ∅
  • {e,a,b}
  • {c,d}
  • {a,b}
  • {b,d}
  • {c,d,b}
Question 3
3.
Find the cardinality of A = {-5,4,6,-4}
  • 3
  • 5
  • 4
  • 2
  • 6
Question 4
4.
If A = {8,10,4,5,6} and B = {9,10,1,0,2} , then A ∩ B =
  • {10,1}
  • {10,5}
  • {15,10}
  • {10}
  • {0,6,10}
Question 5
5.
Which of the following elements belong to the set {10,8,6,5,9}?
  • (-2)
  • 12
  • (-3)
  • 9
  • 13
Question 6
6.
If A = {-4,-8,8,9,-2,-6} and μ = {-4,-8,8,9,-2,-6,0,-5,6,2}, find A ∪ A
  • {-6,9,-2,8,-8}
  • {1,9,-2,-8,-4,5,8,-6}
  • {9,-6,-8,-2,-4,8}
  • {-4,-2,9,7,-1,-8}
  • {-4,13,-8,-2,-6,9}
Question 7
7.
If μ = {-4,4,0,3,-8,8,-5,-9,-2,-1}, A = {-4,4,0} and B = {3,-8,8,-5,-9}, find n(B)
  • 2
  • 6
  • 4
  • 5
  • 8
Question 8
8.
Which of the following is 'union' symbol?
  • ⊅
  • ∪
  • ⊃
  • ⊂
  • ∈
Question 9
9.
If A = {4,9,10,2} and B = {9,8,0,10} , then B ∪ A =
  • {2,0,8,15,10,9}
  • {2,10,0,9,4,8}
  • {8,9,4,2,10}
  • {0,8,10,2,9}
  • {9,4,10,8,13,0,2}
Question 10
10.
Which of the following symbols represent the set of Whole numbers ?
  • Q'
  • R
  • W
  • Q
  • N