Mashaal Masha
Choose the correct options for the following questions.
A statement which is false is termed as
Difficulty: Easy
A:

Tautology

B:

Absurdity

C:

Contingency

D:

Negation

If $A = \{1, 2, 3\}$ and $B = \{4, 5, 6\}$ then find the number of subsets of $A \cup B$ are
Difficulty: Easy
A:

8

B:

16

C:

32

D:

64

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If $A = \{a, b, c \}$ then the number of subsets of $A$ will be
Difficulty: Easy
A:

4

B:

6

C:

8

D:

12

Which of the following properties of sets is the commutative property
Difficulty: Easy
A:

$A \cup B = B \cup A$

B:

$A \cup (B \cup C) = (A \cup B)\cup C$

C:

$A = B$

D:

$A^{'} = U - A$

If $A$ is a subset of $B$ then $B$ is a superset of $A$. This condition is true for which option?
Difficulty: Easy
A:

$A = B$

B:

$B \subseteq A$

C:

$A \subseteq B$

D:

None of these

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Which of the following shows that $\{A\}$ is a subset of the other set?
Difficulty: Easy
A:

$A = [0, A, B]$

B:

$A = [A, B]$

C:

$A = [0, B]$

D:

None of these

If A $\cap$ B = A $\cup$ B, what is the relation between sets A and B?
Difficulty: Easy
A:
A and B are overlapping sets
B:
A is a subset of B
C:
A and B are equal sets
D:
A and B are disjoint sets
If A and B, B and C are overlapping sets while A and C are disjoint sets. Which of the following represents the sets A, B and C.
Difficulty: Easy
A:

A = Set of Natural Numbers, B = Set of Even Integers, C = Set of Odd Integers

B:

A = Set of Rational Numbers, B = Set of Real Numbers, C = Set of Irrational Numbers

C:

A = Set of squares of natural number, B = Set of Even Natural Numbers, C = Set of Rational Numbers

D:

None of these

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Which of the following is the associative law for sets
Difficulty: Easy
A:

$A\cup (B \cup C) = (A \cup B) \cap C$

B:

$A\cup (B \cup C) = A \cap (B \cup C)$

C:

$A\cup (B \cup C) = (A \cup B) \cup C$

D:

None of these

$A \cup B=U$ is only true, when
Difficulty: Easy
A:

$A=B$

B:

$A\subseteq B$

C:

$A'=B$

D:

None of the above

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