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ECAT Pre General Science Mathematics Chapter 2 Set, Functions and Groups Online Test MCQs With Answers
Question # 1
If a set S contains "n" elements then P (S) has ...... number of elements
Choose an answer
2
n
2
2n
2 . n
n
2
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Question # 2
A statement which is either true or false is called
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Induction
Deduction
Propositicon
Logic
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Question # 3
In set builder notation the set {0, 1, 2, ............, 100} can be written as
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Question # 4
If E = { } , then P(E)
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∅
{ }
{(2),(4),(6)....}
(∅)
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Question # 5
If f:A→B is an injective function and second elements of no two of its ordered pairs are equal, then f is called
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1-1 and onto
Bijective
1-1 and into
None of these
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Question # 6
(A ∩ B)c =
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A∩ B
(A ∪ B)c
Ac∪Bc
Φ
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Question # 7
The set of complex numbers forms
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Commutative group w.r.t addition
Commutative group w.r.t multiplication
Commutative group w.r.t division
Non commutative group w.r.t addition
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Question # 8
The complement of set A relative to universal set U is the set
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{x / x∈ A∧ x∈ U}
{x / x∉ A∧ x ∈ U}
{x / x∈ A and x ∉ U}
A-U
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Question # 9
The number of subsets of B = {1,2,3,4,5}
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10
32
16
5
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Question # 10
The number of subsets of a set having three elements is
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4
6
8
none of these
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Question # 11
If B ={x/x€ Z ^ - 3 < x < 6}, then n (B) =
Choose an answer
5
{-3,-2,-1,0,1,2,3,4,5,6}
8
9
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