ICSE Board Practice

Class VI Class VII Class VIII Class IX Class X
ICSE Grade VI - Sets
Question 1
1.
If A = {-1,4,-6,-8,5} and μ = {-1,4,-6,-8,5,9,3,-9}, find A ∪ ∅
  • {4,-6,3,5,-8}
  • {-6,4,-1,5}
  • {-8,-1,5,-6,4}
  • {-8,2,1,-6,7}
  • {5,2,4,0,-8,-6,-1}
Question 2
2.
If A = {4,0,8,6,10} and B = {7,6,10,3,1} , then A ∩ B =
  • {14,10,6}
  • {0,10,1,6}
  • {10,6}
  • {10,6,4}
  • {6,10,3}
Question 3
3.
Find the cardinality of A = {-2,9,-1,6}
  • 5
  • 2
  • 3
  • 6
  • 4
Question 4
4.
Which of the following are overlapping sets?
      • {9,2,3,12,5,7}
      • ,
      • {}
      • {2,12,5}
      • ,
      • {20,11,14,6,15}
      • {9,2,3,12,5,7}
      • ,
      • {20,11,14,6,15}
      • {9,2,3,12,5,7}
      • ,
      • {20,11,14,6,15,7,9,3}
      • {2,12,5}
      • ,
      • {20,11,14,6,15,7,9,3}
Question 5
5.
Which of the following is 'union' symbol?
  • ⊅
  • ⊂
  • ⊆
  • ∪
  • ⊄
Question 6
6.
If A = {4,7,10,1,8} and B = {2,0,9,4,5} , then B ∩ A =
  • {4,0}
  • {4}
  • {4,10}
  • {11,4}
  • {2,8,4}
Question 7
7.
If A = {2,11,15,0,3} and B = {1,4,15,14,10} , then B ∪ A =
  • {11,2,14,4,10,1,0,15}
  • {4,14,11,10,2,0,1,15,20}
  • {10,11,3,1,15,2,14,4,0}
  • {0,1,2,10,4,3,11,14}
  • {10,20,2,4,3,15,14,1,11,0}
Question 8
8.
Which of the following is an infinite set?
  • {-3}
  • {0,1,2,3,...}
  • {-9,-2}
  • {-7,8,-2}
  • {}
Question 9
9.
If A = {1,2,0} and B = {2,0,5} , then B ∪ A =
  • {0,1,7,2}
  • {1,5,0}
  • {}
  • {5,6,1,0,2}
  • {2,5,1,0}
Question 10
10.
If A = {1,3,2} and B = {2,3,4} , then A ∪ B =
  • {2,8,4,1,3}
  • {2,1,8,3}
  • {2,1,4,3}
  • {2,4,1}
  • {1,4,3}