Number of subsets in set A = {1,2,3} is ________

(a)

3

(b)

6

(c)

8

(d)

9

Sets having the same number of elements are called ___________

(a)

overlapping sets

(b)

disjoints sets

(c)

equivalent sets

(d)

equal sets

The set of (A U B) - (A ก B) is ____________

(a)

(AUB)'

(b)

AΔB

(c)

(A∩B)'

(d)

A'UB'

The number of elements of the set {x : x ∈ Z, x² = I} is ________

(a)

0

(b)

1

(c)

2

(d)

3

The shade region with adjoint diagram represents ___________

(a)

A - B

(b)

B - A

(c)

A'

(d)

B'

Which of the following is true?

(a)

\(\left( A\cup B \right) =B\cup A\)

(b)

\({ \left( A\cup B \right) }^{ ' }{ A }^{ ' }{ -B }^{ ' }\)

(c)

\({ \left( A\cap B \right) }^{ ' }={ A }^{ ' }\cap { B }^{ ' }\)

(d)

\(A-\left( B\cap C \right) =\left( A-B \right) \cap \left( A-C \right) \)

If A,B,C are non-overlapping sets, then n \(\left( A\cap B\cap C \right) \) is ___________

(a)

n(A) + n(B) + n(C)

(b)

\(n\left( A\cup B\cup C \right) \)

(c)

0

(d)

\(n\left( A\cap B \right) \)

In a town 30% like only coffee, 20% like only tea,10% like only like,15% like only any two of them, 5% only like all the three. What is the percentage of people who like none them.

(a)

15%

(b)

20%

(c)

10%

(d)

5%

\(\left( A\cup B\cup C \right) \cup \left( A\cup BC \right) ^{ ' }\)=_______

(a)

\(\Phi \)

(b)

A

(c)

U

(d)

\(A\cap B\cap C\)

For any three sets, P,Q,R\(\left( P\cap Q \right) ^{ ' }\)

(a)

\({ P }^{ ' }\cup { Q }^{ ' }\)

(b)

\(P\cup Q\)

(c)

\({ P }^{ ' }\)

(d)

\({ Q }^{ ' }\)