ICSE Board Practice

Class VI Class VII Class VIII Class IX Class X
ICSE Grade VII - Sets
Question 1
1.
Which of the following is 'not a subset' symbol?
  • ⊄
  • ∉
  • ⊃
  • ⊂
  • ⊇
Question 2
2.
If μ = {-4,-1,7,-9,4,-3,0,-8,6,-5,8,5,1,-2,3}, A = {-4,-1,7,-9,4,-3} and B = {-3,0,-8,6,-5}, find n(B')
  • 10
  • 13
  • 9
  • 11
  • 8
Question 3
3.
If A ⊂ B, then which of the following are true?
a)
B − A = A
b)
A − B = B
c)
A − B = ∅
d)
A ∪ B = ∅
e)
B − A = B
  • {a,c}
  • {b,c}
  • {d,e,c}
  • {c}
Question 4
4.
Find the number of subsets of A = {2,5,4,0,3}
  • 33
  • 32
  • 35
  • 31
  • 30
Question 5
5.
If A = {15,9,14,5} , B = {5,14,7} and C = {14,0,9} , then A ∪ (B ∪ C) =
  • {5,15,0,9,14}
  • {7,20,0,5,14,9,15}
  • {}
  • {5,0,7,9,14}
  • {5,14,0,15,9,7}
Question 6
6.
If μ = {3,-4,-1,-6,9,7,6,-3,-8,-5,-7,-9,8,2,-2}, A = {3,-4,-1,-6,9,7,6} and B = {-1,-3,6,-8}, find n(B' ∩ A')
  • 9
  • 7
  • 5
  • 3
  • 6
Question 7
7.
If μ = {4,-1,3,-4,-3,0,1,-6,-2,9,5,7,-5,-9,-8,10,8}, A = {4,-1,3,-4,-3,0,1} and B = {-6,3,-2,9,5,7,-5}, find n(B − A)
  • 9
  • 7
  • 5
  • 4
  • 6
Question 8
8.
If μ = {4,-8,1,3,0,-9,9,5,6,-4,2,-5,-7,-2,-3,7,-1}, A = {4,-8,1,3,0,-9,9} and B = {4,5,6,9,-4,1}, find B
  • {-4,5,6,4,9}
  • {}
  • {6,9,1,4,5,-4}
  • {4,2,9,1,-4,5}
  • {5,9,1,-2,4,-4,6}
Question 9
9.
If A = {14,1,4,2,12} and B = {13,15,14,0,12} , then B − A =
  • {19,13,15,0}
  • {13,0,15}
  • {0,15,14,13}
  • {0,13}
  • {}
Question 10
10.
Which of the following is 'universal set' symbol?
  • ∩
  • ⊂
  • ⊇
  • μ
  • ↔