# 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)**