ICSE Board Practice

Class VI Class VII Class VIII Class IX Class X
ICSE Grade VII - Sets
Question 1
1.
If A = {1,9,0,8} and B = {10,6,4,7} , then A ∪ B =
  • {4,1,6,7,10,9,0}
  • {1,8,6,0,9,10,4}
  • {12,8,6,9,4,1,7,0}
  • {4,0,10,6,9,8,13,7,1}
  • {0,1,6,8,7,10,9,4}
Question 2
2.
Which of the following is a proper subset of A = {0,3,2}?
  • {1,2}
  • {2,3}
  • {0,5,2}
  • {0,3,2}
  • {0,4}
Question 3
3.
If μ = {-9,-1,-3,5,7,3,6,-4,0,-2,1,-7,2,8,4}, A = {-9,-1,-3,5,7,3,6} and B = {-4,-1,0,-9}, find n(B)
  • 5
  • 4
  • 2
  • 3
  • 7
Question 4
4.
If μ = {2,4,-8,0,-5,5,1,-7,8,3,9,-6,-4,6,-3}, A = {2,4,-8,0,-5,5} and B = {1,-7,2,8,-5}, find A ∩ B
  • {-5}
  • {-4,2}
  • {2}
  • {-5,2}
  • {2,3,-5}
Question 5
5.
If μ = {3,-8,-9,7,0,6,-4,1,-6,8,-3,-1}, A = {3,-8,-9,7,0} and B = {6,-9,-4,7}, find B − A
  • {}
  • {6}
  • {6,-4,1}
  • {6,-4}
  • {1,-4}
Question 6
6.
Which of the following symbols represent the set of Whole numbers ?
  • Z
  • Q
  • R
  • W
  • N
Question 7
7.
If A = {10,1,3,4} and B = {9,7,8,4} , then B ∪ A =
  • {4,3,7,9,8,11,10}
  • {4,9,7,1,10,8}
  • {9,7,10,3,4,1}
  • {3,7,10,8,9,1,4}
  • {10,3,8,7,1,15,9,4}
Question 8
8.
If μ = {-4,0,-3,5,6,4,-8,-9,7,-7,-5}, A = {-4,0,-3} and B = {5,6,4,-8,-9,-3}, find A
  • {-3,-4,-5}
  • {-7,0,-3,-4}
  • {-4,0}
  • {-4,-3}
  • {-4,-3,0}
Question 9
9.
If A = {11,0,7,5,8,14,10,1} , B = {13,3,11,14,10,7,9,12} and C = {9,2,6,13,10,5,0,15}, then A ∩ (B ∩ C) =
  • {6,10}
  • {10}
  • {8,10}
  • {10,17}
  • {10,3}
Question 10
10.
Which of the following is a null set?
  • {-1,5,-5,-9,2}
  • {}
  • {4,9}
  • {7,1,-4}
  • {-1,2,-9,0}