ICSE Board Practice

Class VI Class VII Class VIII Class IX Class X
ICSE Grade VII - Sets
Question 1
1.
If A = {-2,2,-3,-9,9,4} and μ = {-2,2,-3,-9,9,4,3,-5,-7,5}, find A ∪ A'
  • {-7,5,1,-5,4,-2,0,2,-9,-3,9,3}
  • {}
  • {-3,-9,3,8,9,-2,-7,2,5,-5}
  • {-2,5,-5,-9,-7,2,4,3,-3,9}
  • {-9,9,5,-2,4,-3,3,-7,2}
Question 2
2.
If μ = {-8,-4,0,4,-6,7,-5,8,6,9}, A = {-8,-4,0} and B = {-4,4,-6,7,-8}, find n((A − B) ∪ (B − A))
  • 3
  • 5
  • 4
  • 7
  • 1
Question 3
3.
Which of the following is 'not a subset' symbol?
  • ⊇
  • ⊄
  • ∈
  • ∪
  • ↔
Question 4
4.
If μ = {-1,3,2,-5,9,7,-4,6,-6,8,-9,-7,1,5,-2,-3,4}, A = {-1,3,2,-5,9,7} and B = {-4,6,-6,8,-9,-7,1}, find ( (A − B) ∪ (B − A) )'
  • {-3,4,-2,5}
  • {}
  • {5,-2,-3}
Question 5
5.
Which of the following is 'superset' symbol?
  • ⊃
  • ∪
  • ∉
  • ⊆
  • ∈
Question 6
6.
Which of the following elements does not belong to the set {l,p,f,u,k}
  • f
  • l
  • k
  • g
  • u
Question 7
7.
If A = {5,11,9,7,3,14,10,1} , B = {8,7,11,2,15,13,5,12} and C = {7,8,4,14,6,0,5}, then B ∩ (C ∩ A) =
  • {5,15,7}
  • {5,7}
  • {6,5,7}
  • {20,7,5}
  • {9,5,7}
Question 8
8.
Which of the following elements belong to the set {7,8,1,4,6}?
  • 12
  • (-4)
  • 13
  • (-5)
  • 6
Question 9
9.
Which of the following is a subset of set A = {-7,-6,2,-4,-3}?
  • {∅}
  • {-4,-7,-3,2,-6}
  • {-4,-3,-7,-6,-9,2}
  • μ
  • {2,-7,-4,-3,-5}
Question 10
10.
If A = {4,-7,-4,6} and μ = {4,-7,-4,6,-2,2,7}, find A ∪ A
  • {-7,6,4,-4}
  • {}
  • {-4,1,0,4,-7,6}
  • {3,0,-7,-4}
  • {-4,-7,4}