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ECAT Mathematics Chapter 23 MCQs With Answers
Question # 1
Choose an answer
a constant function
linear function
quadratic funtion
none of these
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Question # 2
Let A,B, and C be any sets such that A∪B = A∪C and A∩B = A∩C then
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A≠ C
B = C
A = B
A≠ B
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Question # 3
0 is a symbol of
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singleton set
Empty set
Equivalent set
Infinite set
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Question # 4
If B⊆ A, then complement of B in A is = -----------------------
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A-B
A∩B
B-A
A∪B
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Question # 5
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Question # 6
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Question # 7
If C={p/p < 18, p is a prime number}, then C =
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{2,3,4,.........17}
{2,4,6,8................16}
{1,3,5,7,9,11,13,15,17}
{3,6,9,12,15}
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Question # 8
(A ∩ B)c =
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A∩ B
(A ∪ B)c
Ac∪Bc
Φ
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Question # 9
If B-A≠φ , then n(B-A) is equal to
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n(a)+n(c)
n(c)-n(a)
n(a)-n(c)
None of these
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Question # 10
The contra positive of p → q is
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q → p
~q→~q
~p→~q
None of these
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Question # 11
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A
B
U
None of these
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Question # 12
If z1 = 2 + 6i and z2 = 3 + 7i then which expression defines the product of z1 and z2
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36 +(-32)i
-36+32i
6+(-11)i
0, +(-12)i
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Question # 13
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Question # 14
If we have a statement "if p then q" then q is called
Choose an answer
Conclusion
Implication
Unknown
Hypothesis
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Question # 15
Let A and B be two sets. If every element of A is also an element of B then
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Question # 16
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.
Choose an answer
45
30
25
50
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Question # 17
If n(X) = 18, n(X∩Y) = 7, n(X∪ Y) = 40 then n(Y) =
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1
12
5
29
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Question # 18
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Question # 19
The set (Q, .)
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Forms a group
Does not form a group
Contains no additive identity
Contains no additive inverse
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Question # 20
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A
A'
U
None of these
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Question # 21
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1
12
5
29
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