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ECAT Mathematics Chapter 23 MCQs With Answers
Question # 1
Multiplicative inverse of "1" is
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+- 1
0
1
None of these
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Question # 2
In a country, 55% of the male population has houses in cities while 30% have houses both in cities and in village. Find the percentage of the population that has house only in villages.
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45
30
25
50
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Question # 3
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A
A'
U
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Question # 4
Which of the following is the subset of all sets?
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Question # 5
In set builder notation the set {0, 1, 2, ............, 100} can be written as
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Question # 6
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Question # 7
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Question # 8
A statement which is either true or false is called
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Induction
Deduction
Propositicon
Logic
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Question # 9
G = {e, a, b, c} is an Abelian group with e as identity element The order of the other elements are
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2,2,2
3,3,3
2,2,4
2,3,4
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Question # 10
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Question # 11
For any two sets A and, A ⊆ B if
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x ∈ A ⇒ x ∈ B
x ∉ A ⇒ x ∉ B
x ∈ A ⇒ x ∉ B
None of these
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