NCERT Class 11-Math's Exemplar Chapter 1 Sets CBSE Board Problems

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Question 34:

Let R be set of points inside a rectangle of sides a and with two sides along the positive direction of x-axis and y-axis. Then

(A)

(B)

(C)

(D)

Answer: (D)

Question 35:

In a class of 60 students, 25 students play cricket and 20 students play tennis, and 10 students play both the games. Then, the number of students who play neither is

(A) 0

(B) 25

(C) 35

(D) 45

Answer: (B)

Question 36:

In a town of 8 persons, persons read Hindi, read English and read both. Then the number of persons who read neither is

(A)

(B)

(C)

(D)

Answer: (B)

Question 37:

If . Then

(A)

(B)

(C)

(D)

Answer: (C)

Question 38:

A survey shows that of the people watch a News Channel whereas watch another channel. If of the people watch both channel, then

(A)

(B)

(C)

(D)

Answer: (C)

Question 39:

If sets A and B are defined as

, then

(A)

(B)

(C)

(D)

Answer: (C)

Question 40:

If A and B are two sets, then equals

(A) A

(B) B

(C)

(D)

Answer: (A)

Question 41:

If and N the set of natural numbers is the universal set, then is

(A)

(B)

(C)

(D)

Answer: (B)

Question 42:

(A) 34

(B) 31

(C) 33

(D) 30

Answer: (B)