If U = {x : x\(\in \)N and x<10}, A = {1, 2, 3, 5, 8} and B = {2, 5, 6, 7, 9}, then n[(A∪B)′] is  ________.

(a)

1

(b)

2

(c)

4

(d)

8

For any three sets P, Q and R, P-(Q\(\\ \cap \)R) is ________.

(a)

P-(Q\(\cup \)R)

(b)

(P\(\\ \cap \)Q)-R

(c)

(P-Q)\(\cup \)(P-R)

(d)

(P-Q)\(\\ \cap \)(P-R)

For any three sets A, B and C, (A−B)∩(B −C) is equal to ________.

(a)

A only

(b)

B only

(c)

C only

(d)

ф

If J = Set of three sided shapes, K = Set of shapes with two equal sides and L = Set of shapes with right angle, then J ∩ K ⋂ L is ________.

(a)

Set of isoceles triangles

(b)

Set of equilateral triangles

(c)

Set of isoceles right triangles

(d)

Set of right angled triangles

If A and B are two non-empty sets, then (A-B)U(A⋂B) is _____________

(a)

A

(b)

B

(c)

ф

(d)

U

The shaded region in the venn diagram is ___________

(a)

\(A\cup B\)

(b)

\(A\cap B\)

(c)

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

(d)

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

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)

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

If U = {x : x\(\in \)W and x < 20}, A = {2,4,6,8}, B = {6,8,12,14} then\(\left[ n\left( A\cup B^{ ' } \right) \right] \)

(a)

15%

(b)

20%

(c)

10%

(d)

5%

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%

\(\left[ n\left( A\cup B\cup C \right) ^{ ' } \right] \)=_______

(a)

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

(b)

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

(c)

n(U)

(d)

\(\Phi \)